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How Not to Summon a Demon Lord

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How Not to Summon a Demon Lord, also known as The King of Darkness Another World Story: Slave Magic (異世界魔王と召喚少女の奴隷魔術, Isekai Maō to Shōkan Shōjo no Dorei Majutsu, transl. "The Other World Demon Lord and the Summoning Girl's Slave Magic") is a Japanese light novel series written by Yukiya Murasaki and illustrated by Takahiro Tsurusaki. The light novels are published in English by J-Novel Club. A manga adaptation by Naoto Fukuda has been running since 2015 and is licensed by Seven Seas Entertainment. An anime television series adaptation by Ajia-do Animation Works aired from July 5 to September 20, 2018. A second season by Tezuka Productions and Okuruto Noboru aired from April 9 to June 11, 2021.

How Not to Summon a Demon Lord Logo

Synopsis[]

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist "I am the real summon master." Takuma gets slave-turning magic used for summoned beasts cast on him by the girls―

However, the peculiar ability "Magic Reflection" is invoked! The ones that were turned to slaves were the girls!

Takuma was bewildered. He's the strongest magician but, he doesn't have any social skills. Panicking, the first words that came out were the ones that he used inside the game role-playing the Demon King?! "I'm amazing you say? Of course I am. I am Diablo... The one feared as the Demon King!"

This is the story the Demon King (acting) that would soon inspire the world and his other world adventure that he plunges through with his absolute strength, raise the curtain!

List of Published Books[]

Light Novels[]

The light novels are written by Yukiya Murasaki and illustrated by Takahiro Tsurusaki. Kodansha published the first volume under their Ranobe Bunko imprint in December 2014. J-Novel Club announced on September 28, 2017, that they had licensed the series for the North American market.

  • Original Version (Japanese)
    1. Released date December 2, 2014 - ISBN 978-4-06-381433-0
    2. Released date May 1, 2015 - ISBN 978-4-06-381461-3
    3. Released date September 2, 2015 - ISBN 978-4-06-381487-3
    4. Released date February 2, 2016 - ISBN 978-4-06-381513-9
    5. Released date June 2, 2016 - ISBN 978-4-06-381541-2
    6. Released date September 30, 2016 - ISBN 978-4-06-381557-3
    7. Released date March 2, 2017 - ISBN 978-4-06-381589-4
    8. Released date August 2, 2017 - ISBN 978-4-06-381619-8
    9. Released date February 2, 2018 - ISBN 978-4-06-381643-3
    10. Released date June 29, 2018 - ISBN 978-4-06-512645-5
    11. Released date October 2, 2018 - ISBN 978-4-06-513796-3
    12. Released date May 2, 2019 - ISBN 978-4-06-515618-6 / ISBN 978-4-06-516122-7 (Limited Edition)
    13. Released date June 2, 2020 - ISBN 978-4-06-519445-4
    14. Released date June 2, 2021 - ISBN 978-4-06-523735-9
  • English Version
    1. Released date December 4, 2017 - ISBN 978-1-71-831700-0
    2. Released date February 19, 2018 - ISBN 978-1-71-831702-4
    3. Released date May 7, 2018 - ISBN 978-1-71-831704-8
    4. Released date July 23, 2018 - ISBN 978-1-71-831706-2
    5. Released date October 8, 2018 - ISBN 978-1-71-831708-6
    6. Released date December 12, 2018 - ISBN 978-1-71-831710-9
    7. Released date February 26, 2019 - ISBN 978-1-71-831712-3
    8. Released date April 29, 2019 - ISBN 978-1-71-831714-7
    9. Released date June 15, 2019 - ISBN 978-1-71-831716-1
    10. Released date September 8, 2019 - ISBN 978-1-71-831718-5
    11. Released date December 2, 2019 - ISBN 978-1-71-831720-8
    12. Released date January 26, 2020 - ISBN 978-1-71-831722-2
    13. Released date December 1, 2020 - ISBN 978-1-71-831724-6
    14. Released date October 12, 2021 - ISBN 978-1-71-831726-0

Manga[]

Naoto Fukuda launched a manga adaptation of the series on Kodansha's Niconico based manga service Suiyōbi no Sirius in June 2015. Seven Seas Entertainment announced their license to the manga on September 14, 2017.

  • Original Version (Japanese)
    1. Released date February 2, 2016 - ISBN 978-4-06-376596-0
    2. Released date June 2, 2016 - ISBN 978-4-06-390637-0
    3. Released date September 30, 2016 - ISBN 978-4-06-390657-8
    4. Released date March 9, 2017 - ISBN 978-4-06-390687-5
    5. Released date August 9, 2017 - ISBN 978-4-06-390723-0
    6. Released date February 2, 2018 - ISBN 978-4-06-510795-9 / ISBN 978-4-06-510419-4 (LE)
    7. Released date July 9, 2018 - ISBN 978-4-06-511981-5 / ISBN 978-4-06-512845-9 (LE)
    8. Released date December 6, 2018 - ISBN 978-4-06-514075-8
    9. Released date May 9, 2019 - ISBN 978-4-06-515400-7
    10. Released date October 9, 2019 - ISBN 978-4-06-517217-9
    11. Released date April 9, 2020 - ISBN 978-4-06-519084-5
    12. Released date October 9, 2020 - ISBN 978-4-06-520904-2
    13. Released date March 9, 2021 - ISBN 978-4-06-522506-6
    14. Released date June 9, 2021 - ISBN 978-4-06-522506-6
    15. Released date September 9, 2021 - ISBN 978-4-06-524775-4
    16. Released date January 7, 2022 - ISBN 978-4-06-526564-2
    17. Released date April 7, 2022 - ISBN 978-4-06-527390-6
    18. Released date July 7, 2022 - ISBN 978-4-06-528254-0
    19. Released date November 9, 2022 - ISBN 978-4-06-529673-8
    20. Released date March 9, 2023 - ISBN 978-4-06-531500-2
  • English Version
    1. Released date June 26, 2018 - ISBN 978-1-626927-60-5
    2. Released date September 25, 2018 - ISBN 978-1-626928-65-7
    3. Released date February 26, 2019 - ISBN 978-1-626929-65-4
    4. Released date May 14, 2019 - ISBN 978-1-64275-078-2
    5. Released date September 24, 2019 - ISBN 978-1-64275-339-4
    6. Released date November 19, 2019 - ISBN 978-1-64275-340-0
    7. Released date November 19, 2019 - ISBN 978-1-64505-220-3
    8. Released date August 4, 2020 - ISBN 978-1-64505-518-1
    9. Released date October 13, 2020 - ISBN 978-1-64505-758-1
    10. Released date January 26, 2021 - ISBN 978-1-64505-808-3
    11. Released date April 27, 2021 - ISBN 978-1-64827-103-8
    12. Released date October 5, 2021 - ISBN 978-1-64827-289-9
    13. Released date January 4, 2022 - ISBN 978-1-64827-385-8
    14. Released date June 14, 2022 - ISBN 978-1-63858-305-9
    15. Released date January 3, 2023 - ISBN 978-1-63858-892-4
    16. Released date August 15, 2023 - ISBN 978-1-68579-516-0
    17. Released date November 28, 2023 - ISBN 978-1-68579-953-3

Character[]


The main character of this work. His real name is Takuma Sakamoto. He boasted overwhelming strength in the MMORPG Cross Reverie, but when he noticed it, he was summoned to another world in his in-game appearance. He level is 150, but he begins to realize that he surpassed it in the middle of the story. I think I've reached my limit. He was an introvert who played the MMORPG Cross Reverie as his character Diablo. He also played a bit of Sister Carnival (SisKani) and a modern warfare FPS.

Takuma was a Cross Reverie player who controlled the character @Diablo-13, known as the true Demon Lord. He always defeated players with better equipment and overwhelming skills, always holding back for being too strong. But one day he was invoked into another world, appearing in the body of his character, Diablo, finding two girls, a Pantherian and an elf, who claimed to have summoned him and that he should be a slave to one of them, but due to his ring's ability, the magic has rebound back against them, becoming his slaves. Takuma has poor social skills, resulting in him speaking as his character to communicate; it comes off idiotic (to readers) since he doesn't grow out of this, despite the fact it causes more problems than necessary.

In the real world, he is a withdrawal who is absorbed in games, and has a so-called "communication disorder" personality that makes it difficult to converse with others, especially with the opposite sex. From now on, I'm surviving with a demon king role play. Perhaps because of his personality, he dislikes male and female couples, and especially when he witnesses them getting along, he reveals a tremendous amount of anger. Aside from his inner feelings, he hides himself by pretending to be a "demon king" and conversing with an arrogant tone, but due to his own habits, Shera and Rem are half aware of it.

In addition, the corner of the head is removable. Shera and Rem have become a husband and wife, and since he became the husband of the first princess, Shera, he has become the king of the Kingdom of Greenwood.

Personality:
  • His true personality is that of an introvert who has trouble talking to women. He gets jealous of couples in the game and uses his character Diablo to annihilate them as a form of catharsis.
  • As Diablo, he projects a haughty persona although his true personality sometimes slips.

Abilities[]

"Both in-game and in real life, I've always played solo."

― Diablo

On Earth as a human, Takuma Sakamoto has no outstanding abilities except for being an expert at playing video games, especially Cross Reverie. He got his character Diablo to the counter-stop level of 150 as a Sorcerer, he has mastered all of the Elemental magics and had the Combiner sub-class. The arrangement of his stat distribution and skills, his job-class title is 《Sorcerer of Annihilation》. When he came to the other world and became his game character, he could use them as well and he could even adjust it to make an ice cup filled with water appear out of thin air. Also after coming to the other world, he might have picked up the chef sub-class and may have surpassed level 150 as a Sorcerer.

He manipulates a large number of elemental magics that are not widely used in other worlds, and his level is overwhelmingly high, so half-baked attacks will not work. Since magic is reflected by the effect of the item equipped, it boasts no loss except once in the work.

─ PARAMETER [Level 150] ─
How Not to Summon a Demon Lord - Parameter
HP: 4500/4500
MP: 9999/9999
SP: 330/330
OFFENSE DEFENSE ELEMENT EARTH 522
STR: 1860 DEF: 2050 WATER 495
MAG: 9999 POW: 8033 FIRE 580
DEX: 160 AGI: 860 WIND 508
WIS: 774 MOV: 964 LIGHT 690
CRT: 25 LUC: 30 DARK 723

He has been appraised by Emile Bichelberger as level 40 Warrior when they first fought & met. He decides to level up after facing the Fallen who infiltrated the Kingdom of Greenwood in Volume 7. In Volume 8 he trains and ate Gold Fruit to level up to get the current Master Swordsman Graham, Graham Sasara, to teach him to reach pass the limits.

At the time of the game, he was only able to use magic, but after being defeated in a match with the Graham Sasara, he was keenly aware of the reality of this, and by increasing his level of swordsmanship with his own knowledge, there is one thing that can be raised. It broke the concept in the game that there is only one.

《-SKILL-》
SKILL:
  • 《Omit》: Omits the charging (aria) of magic.
  • 《Underwater Movement》: Allows easier movement underwater.
SPELLS:
  • 《Return》: Magic that is the basic of the basics. It allows a person or party to return to the last town they had visited.
  • 《Ice》: A low-level spell that conjures and manipulates ice.
  • 《Water》: A low-level spell that conjures and manipulates water.
  • 《Light》: A low-level Light Attribute spell. A ball of light that flies towards the ceiling (or open air), and once it hits (or reaches a certain height), it bursts and light spreads out in the room/immediate area. This is a magic spell created by Diablo in his spare time practicing magic as a counter-measure for night warfare. He can also imbue objects with it.
  • 《Fire》: A low-level spell that conjures and manipulates fire.  
  • 《Arm Scrap》/《Arm Break》: A weapon destroying spell. It has no effect on equipment that was greater than Rare. This means that it is restricted to weapons that have not been bestowed with magic. It has no use in Player battles, but it does have an effect in drastically shaving off the offensive ability of monsters that possessed weapons.  
  • 《Stardust》: Level 30 Water Type spell. A weak magic. Its visual effects (sparkling hexagonal ice crystals fluttering about) is showy. When used by a magician with a short charge time, it is possible to fire it in rapid succession in the surrounding area around the opponent to use 《Stardust》's visual effects as a smokescreen.  
  • 《Bit Arrow》: A spell that conjures an arrow of light and shoots out toward the enemy. Its power is low and has a high hitting accuracy.
  • 《Explosion》: Level 50 Fire spell; collecting the hydrogen within the atmosphere, it ignites that spot using magical power.
  • 《Flare Burst》: A superior version of the 《Explosion》 spell. It can cause a rare Critical Hit and sometimes Fumble.
  • 《Air Shoot》: A spell as if a squall had blown in. It separates the opponent to a distance away from the caster.
  • 《Lightning Bullet》: A high-ranking Lightning spell. A bullet of Light that is shot at the opponent.
  • 《Dark Bullet》: A high ranking Dark spell. A bullet of Darkness that is shot at the opponent.
  • 《Dark Press》: A spell which produces a black sphere of Darkness that is thrown/tossed at the opponent. Manipulating gravity, it would flatten enemies that were in its effect range of 5 meters. It also has the special effect of putting the enemy in a Bind status for a while.
  • 《Dark Flare》: A spell that conjures a black hellfire.
  • 《Dark Burst》: A spell that causes a soundless explosion.
  • 《Black Lance》: A spell that summons and launches a jet-black lance.
  • 《Darkness Rain》: A spell that creates Darkness arrows that downpour like black rain on the opponent.
  • 《Aero Shredder》: The highest grade Chemical Element Magic of the Wind attribute under level 100. The target of the spell is wrapped up in a green flash with a thunderous roar being raised as the target is cut into pieces.  
  • 《Burst Rain》: Level 70 ranged spell; A ball of fire appears in the sky and bursts open together with a thunderous roar. Clumps of flame that were about the size of fists will rain incessantly on the spots the caster aimed at.
  • 《Super Mine》: Level 80 Earth attribute planting-type spell; It is a trap that would break out from the aimed at the ground, and bestow damage on the opponent that passed by above it. The damage it gave was small but with its characteristics being the time until it activates being fast, it was a magic meant to bring down monsters and Warriors that were filling in the distance.
  • 《Freezia》: Level 80 Water spell; putting a brake on the molecule's motion with magic, it makes them freeze. A magic that would freeze the target's range.
  • 《Volcanic Wall》: Level 80 Fire and Earth spell; Flames were made to spout out from the ground like an eruption and make a flame wall.
  • 《Freeze Zone》: Level 90 Ice spell; it would freeze a small targeted range. It would also bestow the speed reducing bad status 《Cold》.
  • 《Heaven's Fall》: Level 100 Earth spell; it gives damage over a vast range by making countless meteorites appear. By determining the aim with an FPS point of view, the meteorites could be guided to a certain degree, and it was possible to increase the power in exchange for narrowing the range. Hard to use against small opponents, but extremely effective against gigantic monsters and large groups of opponents.
  • 《Cross Blizzard》: Level 110 Wind and Water/Ice spell; Two tornadoes springs forth. All that touched them were frozen over, and on top of that, they were smashed to pieces due to the winds.  
  • 《Matoi Izuna》: A Wind and Light spell; by cladding a kamaitachi in lightning and firing that at the opponent, it would tear the opponent apart from the inside. While it would continue to bestow slip damage to the opponent for a fixed amount of time and paralyze them, it had the effect of bestowing large damage at the end. The "large damage" is a pure white explosion caused by a pillar of light that engulfs the opponent.
  • 《Hercules Lance》: A level 120 Light Attribute spell. Creates a 5m spear of light.
  • 《Naraku》: Level 130 Darkness spell; The effective range was touch--meaning it would only happen to the opponent it was touching. A magic spell that creates a minuscule black hole that forcibly imprisons the enemy in an airspace of darkness. The power is high and the effect is tremendous with only a 5% chance/probability it will Fumble and fail.
  • 《White Nova》: Level 150 Fire and Light spell; The strongest magic spell that Diablo can use. On the tip of his staff, a pure white fireball about the size of a ping-pong ball is produced. The fireball then falls to the ground at a lax speed. The instant the fireball touches the ground, it will split open in a pure white flash with a thunderous roar--a disintegrating annihilation due to magic power should be repeatedly happening in the effect range of the attack. The effect range is a semi-circle that went about twenty-something meters forward from the caster's feet. Its power is tremendous enough to defeat a high-level monster in one hit. However, the weakness of such a powerful spell is the huge MP consumption along with how it took time until the spell is invoked (Diablo needed thirty-something seconds until the spell was invoked).
  • 《Apocalypse Abyss》: A 《Forbidden Spell》. It established magical power points in thirteen spots and was something close to a 《Formation-type Magic》. Its power was high but with a long prep time which only makes it useful against an opponent that moves in a limited space. Within the set range, pillars of light rise up from the thirteen magical power points. The four classical chemical elements raged about and physical objects changed into dust entirely. Lightning ran around, magma blew about, and things that were frozen burst in an instant. A current of magical power was swirling about.  The four classical chemical elements that were spouting out became a tornado tinged with lightning and rose to the heavens swallowing up the area in the set range and causing immense damage. This magic possesses the four elements of earth, water, fire, and wind. Against a being of the Darkness attribute, it has an extremely high effect.
  • 《 Flight Magic》/《Adzet》: A magic which makes objects float. The caster can control how high, which direction and speed of the object. It has a limited effect time.  
  • 《Gravity Abyss》 A multiplex magic.
    • 《Dark Arc Seek》: A maximum magic that makes a bow arc with limbs made of darkness.  
    • 《Black Hole Arrow》: A maximum magic that makes a black hole sphere.  
  • 《Air Block》: Creates an invisible barrier harder than concrete in the air.  
  • 《Lightning Sphere》: A three-meter sphere covered in purple lightning that slowly moves forward.  
  • 《Absolute Zero》: One of the Water Attribute's strongest magic. Any and all kinetic energy is completely and eternally lost. The target was limited to one person, and the spell won’t activate unless done at zero distance.  
  • 《Darkness Cannon》: A high ranking Darkness Attribute magic. It fires a jet black cannonball of condensed magical power.  
  • 《Grand Tornado》: A maximum magic. Makes a tornado.  
  • 《Earth Bounce》: An Earth Attribute magic. Creates an earth tremor. It does not affect whatever is within a 3-meter radius of the caster.  
  • 《Virus Cloud》: Poison magic. A level 110 Darkness and Wind Attribute magic. It makes a black cloud of poison and spreads it forward.  
  • 《Lightning Arrow》: A Light Attribute magic. The superior version of 《Bit Arrow》.
  • 《Glakius Cannon》: It was magic that fired a clump of ice. However, the ice that was generated through Diablo’s powerful magical power was a gigantic lump of ice that was bigger than a single adult.
  • 《Sonic Boom》  
  • 《Thunder Axe》  
  • 《Rust Burst》  
  • 《Chain Lightning》  
  • 《Rock Cannon》: A level 130 Earth Attribute magic.  
  • 《Lightning Meteor》  
  • 《Sylph Shield》  
  • 《Lightning Escalation》  
  • 《Press Shredder》: A level 110 Wind Attribute magic.  
  • 《Sonic Wave》: A Wind Attribute defense magic.
  • 《Demon Squeeze》: A level 120 Darkness Attribute magic. The highest form of 《Dark Press》.  
  • 《Ice Age》  
  • 《Lightning Storm》: A high-level magic that possesses Light and Wind attributes.
  • 《Enel Cannon》  
  • 《Tidal Wall》: A magic formation spread out, and a column of water was raised.  
  • 《Weather Rain》: Rain clouds immediately sprung forth and a magic rain precipitate., and loosely wet the ground.  
  • 《Ruination Flame》: It was the flash of light that possessed a colossal amount of heat, it was said to possess the greatest amount of power in the Cross Reverie. Diablo can only use it when equipped with 《Ruination ring》, but in return, it did not allow the use of any other spells.
MARTIAL ARTS:
  • 《Sword Smite III》: A charge-in type of Martial Art. A part of a Martial Art series which includes 《Sword Smite》.
  • 《Heat Sonic》: A Martial Art learned at level 80. A powerful technique that makes the edge go red hot, and cut eight times in an instant.
  • 《Finger Blade》: A Martial Art that uses SP to give a bare hand the power of a dagger. It was able to cut through metal armor.
  • 《Iron Wall》: A Martial Art that lets Diablo endure attacks with his SP. Using it, he defended against an attack that would have otherwise bisected his shoulder.
Equipment [Current]

"Keep that fear etched in your heart along with this;
My name is Diablo!... I am a Demon Lord from another world!"

― Diablo

  • 《The Ebony Abyss》: Decreases damage taken from physical attacks and increases parameters. If he intentionally harms himself the first effect does not activate. He burns everything but the pants in Volume 5 to fuel the bonfire to save Horn from hypothermia.
  • 《The Distorted Crown》: Changes the appearance of the user to have horns and automatically restores HP.
  • 《The Demon Lord's Ring》: A drop from defeating the 《Demon Lord of the Brain, Enkvalos》. It has Magic Reflection and can reflect all kinds of magic whether it be an attack, support, or healing.
  • Item Pouch: An item pouch Takuma bought all the upgrades using RMT.
  • 《Call of Darkness》: A mantle that bestows 《Fear》 on all enemies.
  • 《Angel’s Feather》: It would transfer the user’s entire party to any location.
  • 《Empty Sky’s Dance》: Boots that Diablo equipped after visiting his treasury in Volume 7. They possess a Flight Magic ability but requires MP to use.
  • 《Phantom Secret Stone》: Its effect was that for only an instant, he would be able to absolutely evade the target’s attack.
  • 《Garuda Edge》: A dagger that increases HP and has a moderate chance to cut away an enemy's physical attack.
  • 《Gigantes Mail》: Armor that primarily strengthened his physical abilities. 
  • 《Supreme Ruler’s Bangle》: Cuts damage received below a fixed value.  
  • 《Seraphic Sword》: A level 70 equipment. It increases experience gained.  
  • 《Insanity Ring》: Absurdly increase the offensive power, and reduces defensive power to nothing. Was offered to the first player who defeated Modinalam in Cross Reverie. Diablo did not have it in Cross Reverie, but obtained after defeating Modinalam in Faltra City in Volume 10. 
  • 《Ruination ring》: Its effect was that it would allow the wearer to cast 《Ruination Flame》, it was the flash of light that possessed a colossal amount of heat, it was said to possess the greatest amount of power in the Cross Reverie, but in return, it did not allow the use of any other spells. Was offered to the first player who defeated Iankaroz in Cross Reverie. Diablo did not have it in Cross Reverie, but obtained after defeating Modinalam(that absorbed Iankaroz) in Faltra City in Volume 10.
  • 《The Staff of Annihilation》: The staff of the demon lord Krebskulm, after merging with Krem diablo obtained his powers and this staff.
Equipment [Former]
  • 《Tonnerre Empereur》: A black magic staff Diablo equipped after visiting his treasury in Volume 7. Diablo can mentally command it to transform into a blade, after which the staff opens up in the middle like a pair of scissors, with the left and right sides forming a blade with a gap in the middle that has purple lightning running through it, that shapes into a plasma blade made of light. After it is transformed into a sword, it is called 《Tonnerre Emperuer • Libéré》. The weapon has an effect that activates magic or attacks seven-fold at a cost of extra expensing of MP or SP. (destroyed in battle by Sorami)
  • 《The Staff of Tenma》: A staff that increases the INT of a player and shortens chant time. He loses it in Volume 5 in his dungeon when he saved Horn from the river.
  • 《The Curtain of Dark Clouds》: Prevent bad statuses. If an attack would decrease the HP to 0, it instead would leave 1 HP. The effect would not activate unless your HP was greater than 10%. He burns it in Volume 5 to start a fire to save Horn from hypothermia.
  • 《Prototype War Scythe》: A melee weapon Diablo bought in the 2nd volume when he needed a way to fight someone without killing them. He saw it in the back of the weapons store and remembered that it was a rare limited item from Cross Reverie. It was destroyed in Volume 10.

Tv Anime[]

An anime television series adaptation was announced in January 2018. The series was directed by Yūta Murano and written by Kazuyuki Fudeyasu, with animation by studio Ajia-do Animation Works. Character designs for the series were provided by Shizue Kaneko. Yuki Nishioka was the chief animation director. Yuki Miyamoto provided monster designs and serves as action animation director. Backgrounds were provided by Kusanagi, while Natsuko Otsuka was the color key artist. Photography for the series was directed by Teppei Satō at Asahi Production Shiraishi Studio, and Satoshi Motoyama directed the sound at Half HP Studio. The series aired from July 5 to September 20, 2018, and was broadcast on AT-X, BS Fuji, Tokyo MX, and Sun TV. The s opening theme, "DeCIDE", was performed by the unit SUMMONERS 2+, a group composed of voice actresses Azumi Waki, Yū Serizawa, Yumi Hara, Rumi Okubo, and Emiri Katō, while the ending theme, "Saiaku na Hi demo Anata ga Suki." (最悪な日でもあなたが好き。, "I Like You Even on the Worst Day."), was performed by Serizawa and produced by HoneyWorks. The first season ran for 12 episodes.

original work Yukiya Murasaki
character draft Takahiro Tsurusaki
director Yuta Murano
Series composition Kazuyuki Fudeyasu
Character Design Kaneko Shizue
Monster design, Animated director Yuki Miyamoto
prop design Yuichi Nakajima
art director Hotaka Okamoto
color design Natsuko Otsuka
director of photography Teppei Sato
edit Masato Yoshitake
sound director Satoshi Motoyama
music Yusuke Kato
music production DIVE II entertainment
Music producer Takashi Murakami, Koji Sato
producer Shin Furukawa, Hideo Momota, Soji Miyagi, Takashi Murakami, Yuki Yamaoka, Shota Watase, Shinichiro Ozawa, Seiji Suzuki, Yoshiyuki Shioya, Tsuyoshi Ochiai, Yoko Baba
animation producer

Hayato Arakawa

Animation production Asiado
Production Another World Demon King Production Committee

Crunchyroll simulcast the series worldwide outside of Asia, while Funimation streamed a SimulDub of it in North America. Following Sony's acquisition of Crunchyroll, the English dub was moved to Crunchyroll.

No. in season Title  Directed by Written by Storyboarded by Original air date 
1 "The Demon Lord Act"
Transcription: "Maō Engi" (Japanese: 魔王演技) 		Hiroki Negishi Kazuyuki Fudeyasu Yūta Murano July 5, 2018
Takuma Sakamoto, a secluded gamer, is transported into the world of his favorite game, Cross Reverie with the appearance and powers of his own character in the game, the Demon Lord Diablo, where the Pantherian Rem Galleu and the Elf Shera L. Greenwood accidentally fall into an enchantment that bound them to him as his slaves. The trio settle in an inn in Faltra City, where they meet Celestine Baudelaire, the head of the Mage Association. The slave collars around Rem and Shera's necks cannot be removed or destroyed, so Celestine promises to find out how to do so. Suspecting Rem is keeping secrets, Diablo forces her to confess in private that the Demon Lord Krebskulm was sealed inside her body ever since she was born. Celestine is the only one who knows, and they have been working on a way to extract and slay Krebskulm without killing her. Diablo vows to help her with her problem. Later, when Diablo takes a walk, the disgruntled mage Galluk attacks him with a giant, fire-breathing salamander, only to be shocked when Diablo easily slays it. He declares he is Diablo, the Demon Lord from Another World!!
2 "The Strongest Newcomer"
Transcription: "Saikyō Shinjin" (Japanese: 最強新人) 		Hiroki Negishi Kazuyuki Fudeyasu Masaya Fujimori July 12, 2018
Diablo, Rem, and Shera join the Adventurer's Guild, but when they try to measure Diablo's Level, the power-measuring device malfunctions. The guildmaster, Sylvie, is intrigued, then sends them on a quest to slay a Madara Snake in the Man-Eating Woods. Once there, they are ambushed by a squad of Elves who reveal that Shera is the Princess of Greenwood and wish for her to return home, and had been told that Diablo enslaved her. Shera refuses to return because her brother had been pressuring her to marry him and bear his child. The Elves attack Diablo, who easily defeats them. Galluk, the one who told the Elves where to find them and desires revenge against Diablo, comes out of hiding and berates the Elves for their failure, then retreats after being reprimanded by Rem. Shera tells the Elves to return and tell her brother she is never coming home.
3 "Fallen Assault"
Transcription: "Mazoku Shūrai" (Japanese: 魔族襲来) 		Wataru Sakaibashi Kazuyuki Fudeyasu Yūta Murano July 19, 2018
Diablo and Shera are given a quest to deliver refreshments to the guards at the Bridge of Ulug. Emile Bichelberger, who thinks Shera and Rem are unwilling slaves, attacks Diablo and is quickly defeated, then the girls explain the situation to him, so he leaves. As Diablo and Shera make the delivery, the guards report a massive army of Fallen is approaching. Aware the guards will not survive without help, Diablo volunteers to defend the bridge. Back in the city, Celestine tells Rem that she fired Galluk for his actions, then states her suspicions that Diablo is actually a Fallen. Galluk bursts in and hysterically demand to hear that he wasn't fired. He suddenly stabs himself with a cursed dagger, causing his body to be possessed and transform into the Fallen Gregore. Diablo defeats the Fallen left and right, then their commander, Edelgard, appears and challenges him to a duel.
4 "Point-Blank War Dance"
Transcription: "Hakugeki Ranbu" (Japanese: 迫撃乱舞) 		Hiroki Negishi Kazuyuki Fudeyasu Masaya Fujimori July 26, 2018
Gregore pursues Celestine and Rem, aiming to kill Celestine to destroy the protective barrier she placed around the city. When they are cornered, Emile and several adventurers defend them. Edelgard is unable to significantly harm Diablo. When a messenger explains the situation with Gregore, Diablo fires a massive spell called White Nova that erases the Fallen army and most of the land, but to Diablo's amazement, Edelgard is only left naked and is mostly unharmed, and she acknowledges him as a Demon Lord. Diablo teleports himself and Shera back in time to save Emile from being killed. Vengeful for all the people Gregore hurt and killed, Diablo humiliates him with his magic until he begs for mercy, then kills him. After funerals are held for the people killed in Gregore's attack, Shera attempts to seduce an exhausted Diablo, only to be attacked by a jealous Rem. Sylvie delivers a message saying Shera must be returned to Greenwood within ten days or else there will be war.
5 "Imperial Knight"
Transcription: "Kokka Kishi" (Japanese: 国家騎士) 		Toshiaki Kanbara Kazuyuki Fudeyasu Tōru Takahashi August 2, 2018
Diablo is angered when he learns Shera's brother put a bounty on her. The group meets Chester Ray Galford, the Lord of the City, who asks them to do their best to prevent a war since Shera refuses to return to Greenwood. Chester assigns Alicia Crystella, an Imperial knight, to assist them. Diablo purchases a scythe so he can fight weaker opponents without using magic. Shera is abducted by bounty hunters, but is rescued by the group plus Emile. Alicia berates herself for not guarding Shera better, but Diablo tells her not to be so hard on herself.
6 "Slave Market"
Transcription: "Dorei Ichiba" (Japanese: 奴隷市場) 		Kazuomi Koga Kazuyuki Fudeyasu Takeshi Mori August 9, 2018
Celestine directs the group to the slave trader, Medios, who was once Celestine's colleague in studying magic, for insight on how to remove Rem and Shera's collars. When they meet Medios, she detects Krebskulm's presence within Rem, but Shera thinks she is saying Rem is pregnant. Medios explains a master can remove a collar by pouring their magical energy into their slave's body. Diablo tries it with Shera, but gives up in embarrassment when the process is extremely pleasurable for her. Later, Shera's brother, Keera, arrives and apologizes for the bounty hunters, then tries to persuade Shera to return with him. She reiterates that she will not return, so he leaves, promising that she will return with him of her own free will.
7 "Change of Heart"
Transcription: "Jinshin Henten" (Japanese: 人心変転) 		Yoshie Takagi Kazuyuki Fudeyasu Yūta Murano August 16, 2018
Diablo dreams of his childhood where many of his so-called friends would use him and then abandon him. While alone with Shera, he finds he can easily craft potions. Outside, Keera plays a flute that hypnotizes Shera into leaving with her brother. Depressed about being abandoned again, Diablo mopes, but Rem and Alicia eventually deduce that Shera was hypnotized and the group plots a rescue. Keera chains Shera up in his tent and interrogates her on her relationship with Diablo, not believing her when she says Diablo did not touch her. Keera unleashes a fabric-eating slime creature to destroy her clothes and prepares to rape her, but the group arrives in time, having already defeated his guards. Keera uses the flute to hypnotize Shera again and make her lie that she wants to stay with her brother, but Diablo uses his authority as the master of her collar to make her tell the truth, and she says she wants to stay with Diablo and Rem. Infuriated, Keera summons a monster called the Force Hydra.
8 "Hero's Charge"
Transcription: "Eiyū Bakushin" (Japanese: 英雄驀進) 		Hiroki Negishi Kazuyuki Fudeyasu Masaya Fujimori August 23, 2018
Diablo manages to defeat the Force Hydra despite its regeneration by completely incinerating it. Shera asks him to spare Keera as he is still her brother and he agrees, but Chester appears and beheads Keera. Chester has his army round up the already beaten Elf troops and attempts to capture Shera, stating his plans to conquer Greenwood. Chester traps Diablo in an energy sphere and destroys Alicia's sword when she tries to defend Shera. Diablo breaks free and battles Chester, evenly matched, and narrowly manages to win. Alicia threatens to report Chester's unethical actions to the King, so he surrenders and withdraws his troops. The group heals the Elf troops with potions and comforts Shera over the loss of her brother. Later, Sylvie serves an exhausted Diablo a drink meant to restore energy, but he becomes drunk and mistakes her for a body pillow. He grabs and caresses her, much to her embarrassment.
9 "Holy Knight Tale"
Transcription: "Seikishi-tan" (Japanese: 聖騎士譚) 		Toshiaki Kanbara Kazuyuki Fudeyasu Takeshi Mori August 30, 2018
While Alicia has an audience with the King, she runs into Saddler, an arrogant Paladin, who is going to Faltra City to investigate Diablo. Shera summons a bird called a Turkey Shot and binds it to her with a collar. Diablo teaches her how to take advantage of the Turkey Shot's ability to share what it sees with its owner to improve her aim with arrows. While Shera and Rem bathe in a river, Edelgard appears, saying she is not here to fight but to confirm Rem holds Krebskulm within her. They explain Rem's situation to Shera and Shera promises to help her. Edelgard explains a ritual to be done in three days at Starfall Tower can remove Krebskulm without harming Rem, then leaves after they agree. Three days later, Alicia returns and warns them about Saddler. Despite their attempts to avoid him, he and his followers find them. Saddler condemns Diablo's friends for consorting with a Demon Lord and injures Rem with magic. He then tries to turn Diablo to stone, but Diablo reflects the spell and Saddler is turned to stone. The group goes to Starfall Tower.
10 "The Demon Lord's Resurrection"
Transcription: "Maō Fukkatsu" (Japanese: 魔王復活) 		Tomoya Kunisaki Kazuyuki Fudeyasu Yūta Murano September 6, 2018
Edelgard explains Diablo must pour his magical energy into Rem through her vagina to release Krebskulm. Despite his embarrassment, he does it, and what emerges is at first a towering, hideous demon, but then it transforms into a cute little girl. Krebskulm has amnesia, and when Shera feeds her biscuits, she is enamored with the taste and decides not to wipe out the mortals. Alicia protests, but Edelgard is loyal to Krebskulm and accepts it. Disappointed in Krebskulm's weaker form and refusal to kill, the Fallen Eulerex appears and attacks her, but Edelgard and Diablo drive him away. As they approach Faltra City, Edelgard leaves since Fallen are not welcome. They change Krebskulm's name to Klem to avoid a panic. An exhausted Diablo is embarrassed when Shera and Klem strip and rub against him to donate magical energy. In private, Alicia remembers how she suffered from abusive parents and superiors and wants Krebskulm to wipe out all the mortal races. Meanwhile, Saddler turns back to flesh and vows revenge.
11 "The Young Girl Awakens"
Transcription: "Yōjo Kakusei" (Japanese: 幼女覚醒) 		Kazuomi Koga Kazuyuki Fudeyasu Takeshi Mori September 13, 2018
The group tells Celestine about Klem and she is happy that the Demon Lord is not evil. While separated from Shera and Diablo, Alicia betrays Rem and Klem to Saddler and they are arrested. Alicia's plan is to traumatize Klem until she returns to her true self. Saddler takes them to a church where he intends to torture Rem until she confesses to worshiping a Demon Lord. Diablo and Shera search for them, while a massive army of Fallen marches toward Faltra City. Klem tries to protect Rem, but when Saddler attempts to strike her, Rem shields her with her body and is impaled several times. Klem snaps, returns to her original demon form, kills Saddler, and blows up the church. As she rampages, Diablo and Shera arrive.
12 "Battle for Legitimacy"
Transcription: "Shingan Taisen" (Japanese: 真贋対戦) 		Hiroki Negishi, Yoshie Takagi Kazuyuki Fudeyasu Yūta Murano, Masaya Fujimori September 20, 2018
Alicia joins the army of Fallen and she, Edelgard, and Eulerex celebrate the return of the true Krebskulm. While Shera treats Rem's injuries with potions, Diablo battles Krebskulm and greatly damages her, but cannot keep her down. After Emile protects the girls from debris, Rem reveals she is all right, causing Krebskulm to revert to the little girl Klem. The army of Fallen turns on Alicia for her failure, but Edelgard holds them off and tells her to escape. Sylvie attempts to kill Klem for the destruction she caused, but relents when Diablo casts the spell to bind Klem to him as a slave and make a collar appear around her neck, as a slave cannot disobey their master. Later, Alicia appears and reveals she sneaked Edelgard, heavily injured from fighting off the other Fallen, into the city and begs Klem to heal her, which she does. Klem orders Edelgard to never kill mortals again. Rem asks Alicia why she did what she did and she reveals her past suffering and desire to wipe out the mortal races. Since Klem will not kill, Alicia attempts suicide, but Diablo stops her and tells her to find a new purpose to live for, then Rem forgives her. Diablo collapses in exhaustion and is embarrassed when all five girls strip and rub against him to donate magical energy. The next day, Edelgard disguises herself as a human and mingles with the people. Alicia leaves for a new journey. Shera and Rem ask Diablo choose one of them and kiss her, but he refuses, as he is a Demon Lord and only does what he wants.
TRAILER (SEASON 1)

On April 8, 2020, it was announced that the series would receive a second season titled How Not to Summon a Demon Lord Ω, co-animated by Tezuka Productions and Okuruto Noboru, and directed by Satoshi Kuwabara, with the rest of the staff and cast members reprising their roles. The second season aired on TBS and BS-TBS from April 9 to June 11, 2021. The second season's opening theme, "EVERYBODY! EVERYBODY!", and ending theme, "YOU YOU YOU," were performed by Serizawa with collaboration by DJ KOO & MOTSU.

original work Yukiya Murasaki
character draft Takahiro Tsurusaki
director Satoshi Kuwabara
Series composition Kazuyuki Fudeyasu
Character Design Kaneko Shizue
Monster design, action animation director Tetsuya Kawaishi
prop design
art director Masami Saito
color design Yumi Aburatani
director of photography Nozomi Shitara
edit Wataru Uchida
sound director Satoshi Motoyama
music Yusuke Kato
Yosuke Yamashita
music production Avex Pictures
Music production producer Shota Sato
producer Shin Furukawa, Hideo Momota, Soji Miyagi, Masahiko Ito, Nobuhiko Kurosu, Yuya Yoshida, Sho Osuga
animation producer Hiroshi Osawa
Animation production Tezuka Production, Okuruto Noboru
Production cooperation Crunchyroll, Avex Pictures, Glee, Kodansha, 81 Produce, Clockworks
Production Isekai Maou Omega Production Committee, TBS

The second season ran for 10 episodes. In South and Southeast Asia, Medialink licensed the series.

No. in season Title  Directed by Written by Storyboarded by Original air date 
1 "Head Priest"
Transcription: "Dai Shushinkan" (Japanese: 大主神官) 		Fumihiro Yoshimura Kazuyuki Fudeyasu Satoshi Kuwabara April 9, 2021
Diablo inadvertently rescues the priestess Lumachina Weselia from assassination by the Paladin Gewalt, easily defeating Gewalt and leaving him frozen in ice. As Lumachina had been praying when Diablo appeared, she now believes Diablo is God, which disturbs him. Lumachina explains to Rem and Shera that only God and her future husband are allowed to see her naked, and since Diablo did unintentionally see her underwear either he must be God, or she must marry him. Backed into a corner, Diablo instead insists his identity is a secret, allowing Lumachina to continue believing he is God and appeasing Rem and Shera’s jealousy. Lumachina believes the Head Cardinal of her church wants her dead for investigating his corruption, so she had been looking for Head Paladin Batutta for his assistance. Diablo agrees to escort her to Zircon Tower City, as he remembers that the dungeon he built in Cross Reverie is located there. Lumachina also meets Klem and Edelgard and they instinctively do not get along, so Diablo decides to leave Klem and Edelgard behind, though Klem does upgrade Shera’s bow to a demonic ebony bow before they leave, to keep Shera safe.
2 "Head Paladin"
Transcription: "Seikishi-chō" (Japanese: 聖騎士長) 		Takahiro Tamano Kazuyuki Fudeyasu Satoshi Kuwabara April 16, 2021
When the group arrives in Zircon Tower City, a child named Horn who had explored the first three floors of a newly discovered dungeon offers to be a guide; the description confirms it is Diablo's dungeon, implying it was summoned along with him. A woman begs a priest of the Paladin Brigade to heal her child of a deadly disease called Death Knell, but is denied because she lacks money. Diablo defeats the priest when he gets violent and Lumachina heals the child. A monstrous sand whale attacks the city and Diablo tries to fight it, but requires the help of Batutta and the city's leader, Fanis Laminitus, to drive it away. Batutta apologizes for his subordinate's behavior, but Fanis heavily taxed the church, making them desperate for funds. Fanis says God is not real and the Church are just swindlers. She tries to shoot Lumachina, and when Batutta blocks it, she says that since God did not stop her, that proves he is not real, then leaves. Lumachina is appalled that many people have Death Knell and are denied healing due to lacking money, but Batutta says they must be pragmatic. Batutta takes the group to his mansion and serves them food. While Diablo and Shera bathe, Batutta and his maid meet Rem and Lumachina for a discussion.
3 "Corrupt Ritual"
Transcription: "Haitoku Gishiki" (Japanese: 背徳儀式) 		Tomio Yamauchi Kazuyuki Fudeyasu Satoshi Kuwabara April 23, 2021
Just as Lumachina deduces that Death Knell is actually a curse, not a disease, she and Rem are drugged and abducted by Batutta and his maid, Shiliu. Horn spied on them and warns Diablo and Shera. Lumachina and Rem wake up tied to crosses in an underground altar where an orgy takes place to extract the evil essence this releases to produce Death Knell. Batutta reveals that he has experienced no tragedy and has no excuse for his actions other than he enjoys being evil. His plan is to corrupt Lumachina with lust so he can make a Death Knell powerful enough to assassinate Fanis. Diablo, Shera, and Horn arrive before Shiliu can sexually torment her. Diablo and Batutta battle with Diablo at a disadvantage because using his power risks triggering a cave-in. Diablo is impaled, but survives and takes off Batutta's arm. Shiliu threatens Rem, but Shera shoots her with an arrow that turns her to stone, while Horn unties the girls. Batutta declares they have already lost and makes a final attack that Diablo counters and Batutta is apparently killed, but this triggers a cave-in. They escape, but discover Lumachina has Death Knell. As she cannot heal herself, Diablo says they must enter the dungeon, as he had stored an item that can heal. Meanwhile, the Fallen Varakness attacks Fanis in her bath and warns her that his army will attack Zircon Tower City soon and then he will force her to join his harem before leaving.
4 "Personal Domain"
Transcription: "Koyū Ryōiki" (Japanese: 固有領域) 		Fumihiro Yoshimura Kazuyuki Fudeyasu Satoshi Kuwabara April 30, 2021
The group is intercepted by Fanis' fleet, as she believes Diablo is working with Varakness. They explain their plan to retrieve an item from the dungeon that can cure everyone of Death Knell, but she doesn't believe them and orders them arrested. They escape when Diablo triggers an earthquake. Gewalt arrives and offers Fanis his services, learning of the dungeon. Four days later, the group arrives at the dungeon deep in the desert, but Lumachina does not have long before the Death Knell will kill her. Diablo conceals the fact that he built the dungeon. After defeating the guardian at the entrance, they encounter a labyrinth. Horn had prepared a map, but it is useless because the walls shift over time, so Diablo simply blasts through the walls. After battling monsters, they are suspended in a basket over a river of lava and must answer trivia questions to pass, which they achieve. To pass another level, they must entertain an army of ape-like White Jaegers with a song and dance routine. On another level, they must move along a narrow ledge above a raging river. Gewalt ambushes them and nearly kills Lumachina, but Horn tackles him and they both fall in the river. Diablo tells the others to keep moving and jumps into the river to save Horn.
5 "Black Dragon Clash"
Transcription: "Kokuryū Gekitotsu" (Japanese: 黒竜激突) 		Kinji Yoshimoto Mayumi Morita Satoshi Kuwabara May 7, 2021
Diablo loses his staff to the river, but saves an unconscious Horn and sacrifices his shirt and cape to make a fire. He removes Horn's wet clothes and is embarrassed to learn Horn is a girl; he thought she was a boy due to her masculine clothing. She wakes up and explains she is an orphan who dressed as a boy to gain respect. While waiting for her clothes to dry, she says he reminds her of her father. Rem, Shera, and Lumachina get through several floors but are attacked by Gewalt again. A massive black dragon appears and attacks them all. Gewalt summons the fire spirit, Ifrit, but the dragon destroys it and critically injures him. Lumachina heals him despite him being an enemy, but he remains unconscious. Diablo and Horn arrive. Though weakened without his staff, Diablo injures the dragon, who attempts to escape, but the maid golem Rose appears and kills the dragon for cowardice. Diablo recognizes Rose as his faithful NPC ally, while she recognizes him as her master and lets them into the treasure room. They go to a white ox statue that heals Lumachina of Death Knell when she touches it. Diablo gets new clothes and a staff while Rem and Horn reluctantly change into revealing outfits that Diablo explains will strengthen and protect them. Shera puts on a ring she finds. Rose is jealous of the other females in Diablo's life, but is placated when Diablo gives her a hair broach. They prepare to take the white ox statue back to the surface, but Rose uses a viewing screen to show Zircon Tower City is under attack by Varakness' army.
6 "Demon Lord Army"
Transcription: "Maōgun-sen" (Japanese: 魔王軍戦) 		Masami Hata Mayumi Morita Satoshi Kuwabara May 14, 2021
Zircon Tower City's defenders are no match for Varakness' army except for Fanis. Varakness and his wives: a mermaid, a harpy, and a dragon-like banshee appear and attempt to force Fanis to marry him. Fanis shoots him through the heart, but the mermaid heals him. The harpy becomes jealous and attempts to kill Fanis. Diablo takes offense to Varakness saying he is working for a Demon Lord, so his group, including Rose, teleport back in time to save Fanis. Diablo, Shera, Rem, and Rose battle the army while Lumachina heals the injured with Horn assisting her. Diablo is enraged when he sees Varakness flaunting his wives as it reminds him of how he was unable to get a girlfriend in real life. He engages them and quickly kills the wives. Enraged, Varakness attacks but is no match. Diablo kills him while declaring himself the true Demon Lord. With the battle won, Fanis holds a feast in celebration. On the way to the feast, Horn is intercepted by bullies who beat her up and ridicule her and her friends, saying they don't believe Diablo actually saved the city. Diablo rescues her and beats up the bullies. As he carries the injured Horn, she laments that she is so weak, but he says that is okay and she can stay with his group.
7 "Little Demon Lord"
Transcription: "Maō Yōjo" (Japanese: 魔王幼女) 		Shunji Yoshida Yukiya Murasaki Kenji Setō
Satoshi Kuwabara 		May 21, 2021
Fanis attempts to seduce Diablo so he will stay with her, but is rejected. Lumachina decides to go to the Royal Capital to root out the corruption of the Church, but first the group returns to Faltra City. While Lumachina visits the city's church, Diablo and Rose learn Edelgard works at a bakery with Klem and Celestine as the usual customers. Klem warns Diablo that she senses something powerful in the Royal Capital. A criminal organization led by the Measmos family has been pressuring the bakery owner to pay protection money. When some Measmos enforcers come and ruin Klem's meal of biscuits, she beats them up and leads Edelgard, Diablo, and Rose in storming the Measmos mansion, but Diablo has to remind the others not to kill anybody. After taking out all the guards, they confront the boss and decide to intimidate him into doing good deeds to atone for his crimes. As everyone regroups and has dinner, Chester Ray Galford appears and says their actions were witnessed and Klem is accused of being a Demon Lord and must be destroyed. Fortunately, the bakery owner and several others appear and thank Klem for stopping the Measmos, and say the Measmos have been making amends for the people they hurt. Chester concludes anyone who could inspire such goodwill couldn't be a Demon Lord. The next day, the group leaves Klem and Edelgard again and travels to the Royal Capital. Meanwhile, the Head Cardinal learns Lumachina is coming and says he will be ready for her.
8 "Visit to the Royal Capital"
Transcription: "Ōto Raihō" (Japanese: 王都来訪) 		Fumihiro Yoshimura Mayumi Morita Satoshi Kuwabara May 28, 2021
The group arrives at the Royal Capital, Sevenwall, and are accosted by guards, but Alicia Crystella arrives and dismisses the guards, then lets them into an inn she owns. Rose becomes jealous, but relents when Alicia says she would willingly die for Diablo. As they eat, Horn says she wants to be stronger. Rose presents a slave collar and says if Horn wears it and makes a Master-Servant contract with Diablo, his power will flow into her, but Rem and Shera warn that if Diablo dies, she will die, plus other demerits of wearing a collar, so she refuses. After explaining to Alicia what is going on, she agrees to investigate the Head Cardinal, Vishos, but warns that the Law cannot touch the Church. That night, Rose asks Diablo to recharge her magical energy, and he is embarrassed when this involves touching her intimately. The next day, Alicia presents evidence that Vishos and his followers have embezzled funds from the Church and have murdered several people. Alicia wants Diablo to destroy the Church, but Lumachina insists on presenting the evidence so she can excommunicate Vishos and his followers. The group bids Alicia goodbye and goes to the city's holy ground, finding a ground-based church and a massive floating church in the sky. When Vishos appears, Lumachina denounces his crimes and orders him excommunicated, but he counters by accusing her of lying and of neglecting her duties and orders the group seized. His guards and the worshipers believe him and attack the group. Horn gives in to fear, manages to escape, and runs away. Lumachina asks the group not to fight as blood cannot be spilled on holy ground, so they surrender and are transported via a levitating platform to the floating church.
9 "Storm the Church"
Transcription: "Kyōkai Raigeki" (Japanese: 教会雷撃) 		Tomio Yamauchi
Yuri Uema 		Kazuyuki Fudeyasu Satoshi Kuwabara June 4, 2021
Lumachina is separated from the others and sentenced to execution. Diablo orders the others not to escape because Lumachina asked them not to. Horn inadvertently activates a Holy Grail she took from Diablo's dungeon and a tiny fairy-like girl named Babylon appears. She explains she appears to those who offer blood to the Grail and an embarrassed Horn remembers urinating in it and decides not to tell her. Babylon offers to make Horn stronger, but her spell doesn't work. With little options, Horn puts on the collar. Babylon helps instruct her on her new powers like bewitching men to fall in love with her as they infiltrate the floating church. Just as she reaches the group's cell, a Paladin attacks and injures her. Enraged, Diablo breaks down the door. Horn is disappointed that they could have escaped on their own and so she tied her life to Diablo's for nothing, but Diablo thanks her for snapping him out of his foolishness in obeying Lumachina, as he is a Demon Lord and obeys no one. He gives Horn a healing potion, then defeats the Paladin after a little difficulty. Diablo flies outside and bombards the church with lightning while demanding Lumachina. When she is presented by guards, he sentences the worshipers to death; his plan being that Lumachina will rebuke him to save them and then he will pretend to fall to make Lumachina a hero. His plan goes awry when Lumachina agrees with "God" to smite everyone, believing the worthy will go to Heaven. Suddenly, Vishos unleashes a giant monster called Europa.
10 "Pretend God"
Transcription: "Kami-sama Engi" (Japanese: 神様演技) 		Fumihiro Yoshimura Yukiya Murasaki Satoshi Kuwabara June 11, 2021
Vishos merges with Europa and boasts that he is a god, then starts smashing the church while trying to kill Lumachina. Diablo learns he is protected by a force field, so he asks Lumachina to cast Dispel to destroy the force field, but must protect her as it takes a long time to cast. Rose tries to help, but Vishos destroys her arm. Lumachina casts the spell, but Vishos resists it until the worshipers pray for her, empowering her and allowing the spell to work. With the force field gone, Diablo easily vaporizes Europa and Vishos, but to his chagrin, the worshipers start calling him God. Rem investigates the inside of the church and discovers that Gewalt, out of gratitude for Lumachina healing him, has resigned from the Paladins and killed Vishos' guards, then presents the key to the cell of Lumachina's friend Tria so they can free her. Lumachina decides to stay and repair both the church and its reputation, aware she must also investigate Vishos' connections. Diablo finally convinces Lumachina that he is not God, but she is grateful for his help nonetheless. Horn and Babylon decide to stay in Sevenwall so Horn can study magic, and Alicia takes them in. Rose is repaired and the group returns to Faltra. When Fanis learns what Diablo has done, she decides to visit Faltra to try to seduce him again. Shera brings up the ring she took from Diablo's dungeon and he is embarrassed when Rose points out it signifies marriage. Rem becomes jealous, so he says they will go on a quest to find another ring for her.
TRAILER (SEASON 2)

Web Radio[]

The video program "Isekai Maou to Serizawa Yuu to Waki Azumi" by Yu Serizawa as Shera L. Greenwood and Azumi Waki as Rem Gareu was broadcast twice a month on HiBiKi Radio Station from June 28 to October 5, 2018.

Collaboration corner "Wakikoto Seriko to Isekai Majo" in the program "Wakikoto Seriko" by Yu Serizawa and Azumi Wakei from April 5, 2021.

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