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Kono Sekai wa Fukanzen Sugiru (この世界は不完全すぎる, Quality Assurance in Another World) is a Japanese manga series written and illustrated by Masamichi Sato. It began serialization on Kodansha's Comic Days website in May 2020. As of April 2023, the series' individual chapters have been collected into nine volumes. An anime television series adaptation produced by 100Studio and Studio Palette will aired from July to September 2024.

Kono Sekai wa Fukanzen Sugiru Logo

Synopsis[]

Nikola is just a village girl working at the inn...until the day dragons invade, and she meets Haga, a scholar of everything around him. He's a part of an elite society called "Seeker," created to address a series of maladies plaguing their usually peaceful world. But both Nikola and Haga have secrets they hide... Ones that will change each other's very existence...

(Source: Kodansha USA)

Bibliographic Information[]

Written and illustrated by Masamichi Sato, the series began serialization on Kodansha's Comic Days manga website on May 30, 2020. As of April 2023, the series' individual chapters have been collected into nine tankōbon volumes.

In May 2021, Kodansha USA announced that they licensed the series for digital English publication. In July 2022, during their panel at Anime Expo, Kodansha USA announced the print release of the series.

No. Original release date Original ISBN English release date English ISBN
1 October 9, 2020 978-4-06-520873-1 June 29, 2021 (digital)
April 4, 2023 (print)
978-1-63-699167-2 (digital)
978-1-64-651777-0 (print)
2 January 8, 2021 978-4-06-521992-8 July 27, 2021 (digital)
June 6, 2023 (print)
978-1-63-699244-0 (digital)
978-1-64-651778-7 (print)
3 April 8, 2021 978-4-06-523041-1 August 24, 2021 (digital)
August 8, 2023 (print)
978-1-63-699311-9 (digital)
978-1-64-651779-4 (print)
4 July 8, 2021 978-4-06-523956-8 November 16, 2021 (digital)
October 3, 2023 (print)
978-1-63-699471-0 (digital)
978-1-64-651780-0 (print)
5 November 10, 2021 978-4-06-526012-8 May 31, 2022 (digital)
December 5, 2023 (print)
978-1-68-491194-3 (digital)
978-1-64-651781-7 (print)
6 March 9, 2022 978-4-06-527333-3 October 11, 2022 (digital)
February 6, 2024 (print)
978-1-68-491478-4 (digital)
978-1-64-651782-4 (print)
7 August 29, 2022 978-4-06-528311-0 March 14, 2023 (digital)
April 2, 2024 (print)
978-1-68-491848-5 (digital)
978-1-64-651877-7 (print)
8 October 28, 2022 978-4-06-529377-5 June 6, 2023 (digital)
June 4, 2024 (print)
978-1-68-491962-8 (digital)
978-1-64-651947-7 (print)
9 April 12, 2023 978-4-06-530845-5 September 12, 2023 (digital)
August 13, 2024 (print)
979-8-88-933143-8 (digital)
979-8-88-877062-7 (print)
10 October 11, 2023 978-4-06-532212-3 March 12, 2024 (digital)
October 8, 2024 (print)
979-8-88-933411-8 (digital)
979-8-88-877317-8 (print)
11 April 10, 2024 978-4-06-535125-3 September 10, 2024 (digital) 979-8-89-478012-2
12 July 10, 2024 978-4-06-536214-3
13 August 9, 2024 978-4-06-536384-3

Character[]


The protagonist of this work. He belongs to Nissima Tech Inc. He is almost the only man who continues to debug steadily among the players who have fallen into a semi-anarchy. It is suggested that this is not only because he is proud of his debugging work, but also because he "keeps his sanity by immersing himself in his work. Like other debuggers, he is in a position to use "stone tablets" to use cheats, but he stubbornly refuses to use debug mode because a colleague at Nissima technology who abused it got stuck in an infinite loop and died.

Although he has a stout physique, this is only because his character creator has given him a burly appearance; in real life, he looks like a small, frail child. His personality is also herbivorous and nerdy, with a weak assertiveness. However, he is more determined to debug than most people and he is often appalled by the way he continues to do debugging work without looking away, which to the casual observer may seem like an eccentric activity. He is currently working on the hypothesis that if he finishes a game scenario, he can leave the game. He is currently working on the scenario based on the hypothesis that if he finishes the game scenario, he will be able to leave the game.

Debuggers Trapped in the Game World
The setting of this work is the world within the fully immersive VR game "Kings Seeker Online." The game features an adventure set in a fantasy world where magic and monsters exist. The protagonist, Makoto Haga (Haga), is participating as a member of a debugger team responsible for checking the game's bugs, but for some reason, everyone finds themselves unable to log out. As days pass, Haga and the leader, Kamibayashi, witness the other three members starting to act freely using the debug mode (which allows them to become invincible and ignore walls), resulting in them becoming stuck in the ground or trapped in an infinite loop of healing and dying, rendering them unable to act. Kamibayashi considers that they might be able to log out by clearing the game, so he decides to proceed with the game for the time being. Meanwhile, Haga decides to continue debugging while searching for a way to save the three. However, even after about a year has passed, the situation has not changed at all.
Eliminate Malicious debuggers and Aim for the completion of the game.
Haga was checking an event where a village on the outskirts of the Kingdom of Vale was annihilated by a dragon. One day, a mysterious phenomenon occurred where an NPC (non-playable character) girl, Nicola, who was supposed to die, was resurrected. Although confused, Haga decided to embark on a journey with her, following her hopes. Haga's goal was to continue debugging while exploring ways to log out and rescue companions. However, using Nicola's body, the meta-AI Tesla, which oversees the game, appeared and gave Haga a new mission. It was to take away and eliminate the stone tablets (debug stones) from the malicious debuggers. As long as they continued to do as they pleased without debugging, the game would never be completed. Thus, Haga set out on a journey burdened with a great mission.
Using bugs and cheats to fight against malicious debuggers
The ones hired as debuggers for this game are not just Haga and the others. And all of them are unable to log out of this game. Among them, there are those who indulge in a luxurious life using debug mode and commit horrific acts like slaughtering NPCs for fun. They interfere with Haga, who is serious about his work, and try to take his life. Haga, whose companions have become incapacitated, believes in not using debug mode. His way of fighting involves utilizing bugs and cheats. For example, he maneuvers enemies into walls that can be passed through, causing them to fall out of the area, or intentionally spawns a large number of monsters in a narrow passage, slowing down movement due to processing lag. Haga's unique strategies, stemming from his serious approach to debugging, are one of the highlights of this game.

Abilities[]

"Aren't you excited about finding a route that never existed?"

Haga, said to Amano

Nishimatech Co., Ltd.'s debugger. In the fully immersive VR game "Kings Seeker Online," he is a young man named "Haga" with red hair and a sturdy build, whose profession is a thief. Haga, is a member of the "King's Seekers", a top-secretly organized research team that organized by the king (developers). The explorer, who investigates every event in the world and travels the world, is respected by the villagers. As part of his mission, Haga successfully defends his village from a dragon attack. He ends up exploring the world with Nicola, a girl he rescued by chance, but Haga's true purpose is not adventure is only fixed "debugged" and he is currently working on completing the scenario based on the hypothesis that if he finishes the game scenario to the end, he will be able to exit the game.

CHEAT EQUIPMENT
LithographDebug Stone
An item owned by each player. Originally, it was a support item (System tablet) that all players were required to have, but since this game was not officially released, "a function to send an e-mail to the management by pressing a piece of paper (bug sheet) with the investigation results written on it face down" and "a function to activate the debug mode and use cheat commands freely from there" were added. A debugger-only version is distributed.

Haga professional "Debugger" tests various actions in a game and investigates whether the game can be played properly. In case you are wondering, it is a real occupation. The debugger job that logs in to King's Seeker Online has been locked in the game for almost a year without being able to log out. Naturally, there is no way that they can just sit around debugging under such abnormal conditions, and most debuggers have abandoned their debugging duties and are playing freely using the debug mode, because of his talents seeking every information from certain place, thus he can know what possible actions and method of every situation, events, and dungeons in his journey.

JOB
Thief
Although the thieves are technically involved in illegal activities, they are indispensable for gathering intelligence and are therefore recognized by all countries as a proper job. It is impossible to escape the web of information held by the thief guild. While the job description says that Thieves are suited to using Short Swords and Daggers, they're often much better served by hiding in the back row with the casters, but for Haga his main position in frontline in the battle.
  • Skill: ≪Lockpicking≫ ≪Sneak≫ ≪Slash Kick≫ ≪Hand Portal≫ ≪???≫

To their credit, the debuggers are not scum or lazy by nature but rather play with cheats to protect their minds from the stress of being stuck in the game world. However, there is a limit to this, and the debuggers who appear on the scene are more or less mentally ill. The existence of debug mode means that basically, you will never die, but if you get stuck in a situation where you jump to coordinates outside the drawing range and can't come back, or get stuck in an infinite loop, or your avatar crashes, etc., it will most likely suffer so much that it would be better to die than to not die at all and it is better to be dead than not to be dead at all, because of this Haga's mentality adapt every event he experienced. One of Haga feats is a strong physics, great stamina, good survival skills even capable to create a potion or poison, and especially his cooking skills.

Gallery

TV Anime[]

An anime television series adaptation was announced on March 24, 2023. The series is produced by 100Studio and Studio Palette and directed by Kei Umabiki, with series composition by Shogo Yasukawa, character designs by Shigeo Akahori, and music composed by Yuta Kasai, Seima Iwahashi and Daisuke Horikawa of Elements Garden. It was originally scheduled for Q2 2024, but was later delayed. It is set to premiere on July 6, 2024, on the Animeism programming block on MBS, TBS, and BS-TBS. The opening theme song is "No Complete", performed by Liyuu, while the ending theme song is "Loop", performed by Nacherry (a voice unit composed of Chiemi Tanaka and Natsumi Murakami).

  • Staff
    • Original Story - SATO Masamichi
    • Director: BABUKI Kei
    • Series Composition - YASUKAWA Shogo
    • Character Design AKAHORI Shigeo
    • Art Director Kenichi TAJIRI
    • Color Designer SUZUKI Sakie
    • Director of Photography OTSUKI Ayako
    • Editing Emi ONODERA
    • CG Director Hirotaka NAITO
    • Sound Director Takeshi TAKADERA
    • Sound Effects - Yuka KAZAMA
    • Music: Iwahashi Hoshimi, Kasai Yuta, Horikawa Daiyuki
    • Music Production - Lantis
    • Music Producer - Shigematsu Atsushi
    • Chief Producers - Chinatsu Matsui, Akira Yonezawa, Nobuhiko Kurosu, Hiroyuki Aoi, Kotaro Horiguchi, Hayanori Matsuda
    • Producers - Hideyuki Murata, Isao Hidaka, Hiroaki Yamazaki, Kai Mito, Yoichi Sekine
    • Animation Producer - Yuki Takada, Tomonori Saito
    • Animation Production - 100studio, studio Pareto
    • Production - “This World is Too Imperfect” Production Committee

Crunchyroll licensed the series. Medialink licensed the series in East and Southeast Asia for streaming on Ani-One Asia's YouTube channel.

No. Title  Directed by  Written by  Storyboarded by  Original air date 
1 "Nikola the Servant Girl"
Transliteration: "Shitabataraki no Nikora" (Japanese: 下働きのニコラ)
Kei Umabiki Shogo Yasukawa Kei Umabiki July 6, 2024
Nikola lives in a small village that rarely sees trouble. That is until it gets attacked by Demidragons. However, Nikola is saved by a strange man named Haga. Nikola observes him doing strange things most notably writing things down before using a stone to send a beam of light to the sky. She deduces that he’s a Seeker. A special unit of the King sent to observe strange phenomena. Just then the village comes under attack by a massive DemiDragon. Haga attacks it with a massive stockpile of arrows and explosives. With the villagers help he defeats the monster. However, out of nowhere Nikola and the other villagers burst into flames. Haga reveals that Seekers are just another word for debuggers and that the world is a video game called King Seeker’s Online. That no matter what he did the village and the villagers still die. A flashback shows that Haga was part of a team sent to look for bugs in the game but were unable to logout and have been stuck for a year. That night Haga is about to send another message to the developers using his debugger stone when Nikola shows up at his tent.
2 "Haga Makato"
Transliteration: "Haga Makoto" (Japanese: 羽賀マコト)
Ippei Ichii Shogo Yasukawa Daisuke Shimamura July 13, 2024
Haga is still confused as to how Nikola came back. Now Nikola says that she wants to join him on his journey and be a Seeker. The two travel to a small town where they repeatedly test the wall by running along it and jumping into it to see if they glitch into it or not. They camp outside the walls when they run into two other debuggers, Sakai and Sumida. Sakai explains that they’re part of a group of debuggers who have been using Debug Mode to do whatever they want and they want Haga to join them. This angers Haga and he refuses. So Sumida repeatedly attacks them with his charge skill and using Debug Mode to move through the walls. However, Haga tricks him into falling outside the map as Haga steals his debug stone. Sakai runs away. Haga decides he needs to take Nikola to meet the rest of his team at the Advent Altar.
3 "Tesla"
Transliteration: "Tesura" (Japanese: テスラ)
Studio Palette Shogo Yasukawa Tatsushi Yamazaki July 20, 2024
Haga and Nikola make it to the Advent Altar. Haga uses his experience of repeatedly going to this place to quickly move through it. However Nikola gets distracted by coins on the ground which triggers a trap set by monsters. Haga quickly defeats the monsters. As Nikola sits down she asks where Haga’s allies are. He reveals that she’s actually sitting on one of them. Flashbacks show that Haga’s team started abusing Debug Mode after they couldn’t log out. One got permanently glitched into the floor, another is stuck in an endless death cycle and one flew into the sky never to be seen again. The leader of Haga’s team left to finish the game hoping it would allow them to log out while Haga stayed behind to keep debugging and hopefully free the two stuck. Haga says he’s now decided to move on as he has never been able to save the other two. As they’re about to leave, Nikola steals both Haga’s and Sumida’s debug stones. She has been possessed by the games Meta AI program named Tesla. Tesla tells Haga he must find the other crooked Debuggers and steal their stones so she can destroy them. Thus revoking their debugger status. Otherwise their constant destruction will make it so the game is never finished. As the two continue their journey they come across an unknown village where the NPCs are stuck in T-pose.
4 "Isora Amano"
Transliteration: "Amano Isora" (Japanese: 天野イソラ)
Tetsuaki Watanabe Shinichi Inozume Yutaka Kōmi July 27, 2024
Haga and Nikola go around gathering info on the buggy village before submitting their report. The next day the villagers are fixed but the two run into a small furry creature walking in T-pose. It uses magic to turn invisible but its footprints led them to its house. The creature is revealed as another debugger named Amano. He was part of the crooked debuggers but left them and left his debug stone behind as he was disgusted with their actions. He then stayed with an NPC named Lu who appreciates his work of writing manga. The boss of the crooked debuggers arrives at the village crushing it with a Demidragon. Lu unfortunately dies from her injuries. Amano vows revenge on the crooked debuggers.
5 "Infiltration"
Transliteration: "Sennyū" (Japanese: 潜入)
Hitoshi Moto Katsuya Ishida Hitoshi Moto August 8, 2024
The three begin their journey to the castle where the crooked debuggers have been using as a HQ. Along the way Haga gets Tesla to return to explain the situation to Amano. The three arrive at the castle only to see the bridge destroyed. The team goes to a nearby tower where Haga uses a glitch to launch them all the way to the castle. The three enter the castle through the main gate. This triggers a quest where they’re arrested by the guards. They’re are brought to the cells but find out they’re in a separated area from the crooked debuggers. They use this to travel freely through the castle. They end up in the torture chambers where Nikola uncovers chest filled with inappropriate sexual items. They’re then confronted by a monster that speaks in english and uses a lot of profanity.
6 "The Mad King"
Transliteration: "Kyōran no Kentei" (Japanese: 狂乱の賢帝)
Ryosuke Izumiyoshi Shogo Yasukawa Daisuke Shimamura August 10, 2024
Haga defeats the monster while having Nikola fill out a report on its profane language. The three move to where the final boss of their quest is but instead use a hole in the ceiling to move up to where the boss of the crooked debuggers is. While also setting a delayed pack of explosives to kill the game boss. That way when the game boss dies they will glitch back into the main game and sneak up on the crooked debuggers. Along the way they’re confronted by a huge knight who disappears in the middle of the fight. Meanwhile Sakai and the other crooked debuggers talk about how they have become tired of following their bosses orders. Haga and the others make it into the bosses room and hide in a chest just as the explosives go off. The boss talks to the others about wanting to complete the campaign in order to log out. Amano peeks outside the chest only to see Sakai and the others stabbing the boss.
7 "The Boss"
Transliteration: "Bosu" (Japanese: ボス)
Hitoshi Moto Shinichi Inozume Tatsushi Yamazaki August 17, 2024
After killing the boss, Sakai and the other crooked debuggers say they want to stay in the game world. They leave and the trio comes out of the chest. Amano is frustrated he didn’t get his revenge and that it didn’t bring Lu back. Haga has Tesla devour the boss’s debugger stone. As they leave, the tower starts falling apart as the crooked debuggers are removing stones from the boss’s tower for a game. The tower falls and Haga and the others come out from the rubble and come face to face with Sakai’s team. Haga grabs the others and tries to make it to the gate to trigger the quest again but gets attacked repeatedly and stopped by Sakai and the others. They offer a spot for Amano who appears to accept but instead uses a wind spell to blast the others past the gate. This triggers a bug, freezing all the crooked debuggers permanently which was Haga’s actual plan. They destroy all their debugger stones and Haga wants to go back into the castle to fully debug it. However, they are confronted by the Boss. Amano immediately attacks him but the Boss secretly tells him that there’s a way to bring Lu back. As they fully confirm the area is now going back to the way it should, Amano contemplates whether he should meet the Boss to find out this secret.
8 "Console Command"
Transliteration: "Konsōru Komando" (Japanese: コンソールコマンド)
Higashio Yamauchi & Maki Kamiya Katsuya Ishida Yutaka Kōmi & Tetsuaki Watanabe August 24, 2024
The trio stays the night at a nearby inn. Haga stays up late filling out reports while Amano leaves to go to the Boss's destroyed tower. He finds his old debugger stone where The Boss said it was and makes a deal with him. The two ride out to Lu's village to bring her back in exchange for Amano helping the Boss beat the game. Amano successfully revives Lu but she has no memory of Amano. Meanwhile, Haga and Nikola go to change Nikola's class. She wants to be a thief like Haga but due to her NPC status she can't be anything other than a villager. Haga lies and says that there's an age requirement. They go to find a weapon for Nikola and come across a magic cannon device that scales in power to the users potential. However since Nikola doesn't have an actual potential it instead bugs out and fires at max power. Meanwhile, Amano is camping out with the Boss when the Boss is killed by the knight Haga fought earlier. Amano returns to the inn with the knight who reveals herself as another debugger named Akira.
9 "Akira Kagami"
Transliteration: "Kagami Akira" (Japanese: 加賀美アキラ)
Shunsuke Kishi Katsuya Ishida Yuji Kanzaki August 31, 2024
Akira tells Haga and Amano that she was investigating the crooked debuggers herself when she ran into them and accidentally got pulled into their quest. She says she wants to live a normal life in the game world and after hearing Haga refuse to use debug mode, she backed off. She also decided to join the team. Haga and Amano accept her but decide to keep Tesla a secret. The next day Haga decides the team should journey to the kingdom of Stamoa to continue their debugging quest. Along the way they find giants running away in fear and come across a superstrong child NPC named Gaydler. Gaydler tells them that a Seeker named Yamanaka made him his apprentice and is the reason he became so strong and has been protecting his village from giants ever since. Gaydler takes them to his village but Haga, Amano and Akira notice a lot of tension between the other villagers and Gaydler. Haga sneaks out in the middle of the night and spies on the village warriors plotting to kill Gaydler. Having grown tired of his reckless and destructive behavior.
10 "Gaydle and Yamanaka"
Transliteration: "Gēderu to Yamanaka" (Japanese: ゲーデルとヤマナカ)
Yuki Kadohara Shogo Yasukawa 100studio September 7, 2024
Haga is caught by the villagers. He asks them what happened to Gaydle. They say Yamanaka showed up one day and then disappeared with Gaydle for three days. When Gaydle returned he was in his overpowered form. Haga goes to his friends for help but Akira says to just kill him. As they’re talking Akira hears fighting. They rush to Gaydle who has already slaughtered the other warriors. Haga decides to track Gaydle as he runs away to find Yamanaka and get him to explain what he did. A flashback shows that Yamanaka wanted to help Gaydle become a fighter but while messing with his stats he made him way overpowered. Gaydle finds Yamanaka in an unfinished dungeon unable to speak. Another flashback shows Yamanaka got stuck as essentially a spirit when he tried free camera mode on his debugger stone. Tesla steps in and devours Yamanaka’s debugger stone. Trapping Yamanaka and Gaydle as they are permanently. This sends Gaydle into a rage. Haga and Akira try to fight him but can’t even scratch him. Amano uses Nikola’s blaster but only wounded him. Haga grabs Akira and Nikola and along with Amano flee the cave.
11 "Alba"
Transliteration: "Aruba" (Japanese: アルバ)
Ippei Ichii Shogo Yasukawa 100studio September 14, 2024
Haga and the others retreat to the village to evacuate the villagers, but they refuse to leave. Gaydle storms in and rampages the village. He only stops when he sees kids cowering from him and realizes the monster he has become. Just then, he starts bleeding massively and dies. Akira used her debugger stone to use the kill command on Gaydle. Haga is upset by this, but Akira threatens him saying she has grown tired of his debugging obsession. She's stopped when giants attack the village. With no other option, the heroes flee and watch the village burn. Nikola is still unconscious from Gaydle's attack, so they decide to go to the kingdom of Sai. A month later the team makes it and meets with Akira's allies Ren and Akane. They have Haga and Akira do a ritual to ease their stress by burning papers with complaints on them where Haga writes his name as Makano. Later they meet with Akira's leader, Alba, who awakens Nikola, but she awakens as Tesla and attacks Alba. Tesla reveals Alba is another Meta AI program and that each of the five countries in the game has one. Tesla begins to interrogate Alba as to what he's doing trying to act like the king of this country.
12 "The Diamond"
Transliteration: "Za・Daiyamondo" (Japanese: ザ・ダイヤモンド)
Han Yeong-hun Shogo Yasukawa Mamoru Kurosawa September 21, 2024
The team retires for the night when Tesla asks Haga to submit a report on Alba's behavior. Just as Haga is about to hit send, Alba uses his power to send him to a dungeon. The next day Ren talks with Alba revealing the stress relief ritual was part of a trap so Alba could use his powers on Haga. However, Ren states that Amano, Akira, and Akane were part of it as well. So, they too were sent to a different part of the dungeon. Haga explores and finds a library where he meets a crystal creature debugger named Kinoshita. She says she was originally a lizard person until she tried armor on that bugged out and got her stuck in her current form. She too was mysteriously teleported into the dungeon she says is called "The Diamond" and says her and Haga are on the very last floor of it. Meanwhile, Amano and the others find a casino where Akane quickly loses all her money and goes into debt. She tries to leave without paying off her debt but is blocked. She's told the only way to pay off her debt is by letting the casino staff harvest her organs. Haga plans to escape the dungeon by going through the upper floors but Kinoshita reveals that to do that they would have to get past the dungeon's final boss. A giant goat creature named Silence.
13 "Silence"
Transliteration: "Sairensu" (Japanese: 沈黙の悪魔)
Yoshihide Ibata Shogo Yasukawa 100studio September 28, 2024
Haga finds out Silence reacts to any sound in his vicinity. Knowing he is unable to fight it on his own, him and Kinoshita retreat to the library hoping one of the books will show a weakness. Meanwhile Amano tries to win Akane’s freedom by betting his own organs in a game of poker. He starts to win thanks to a bug in the deck but loses due to another bug that cost him all his chips. Out of nowhere, Haga appears and has the others use a wall clipping bug to escape the casino but the casino AIs turn into monsters and chase them back to the raid boss Silence. Haga tells the others to not say a word when they enter the room and find it covered in books. A flashback shows that Haga found out the books make no sound when struck, so he used them as stepping stones to escape the raid room. The monsters end up getting slaughtered by Silence. Kinoshita triggers a trap to kill Silence. Meanwhile, Ren tells Nikola that Haga and the others left her behind and tell her to go home. She starts traveling back but realizes Ren must have lied and the others are most likely still there. As she starts traveling back, the others soon find out that Silence is a multiple phase type boss.
TEASERS
TRAILERS

Reception[]

Yasushi Kobayashi from Da Vinci offered praise to the story, calling it intense. Masaki Endo from Tsutaya News also offered praise, calling it unique among other works of the isekai genre. The reviewer from ITmedia [ja] had similar feelings, calling the story fun.

External Link[]

Trivia[]

to be added.

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