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Yasei no Last Boss ga Arawareta! (野生のラスボスが現れた!, Wild Final Boss Appeared!) is a Japanese light novel series written by Firehead and illustrated by YahaKo. It was initially serialized on the user-generated novel publishing website Shōsetsuka ni Narō from October 2015 to April 2019. It was later acquired by Earth Star Entertainment who published it under their Earth Star Novel imprint from February 2016 to April 2019. A manga adaptation illustrated by Tsubasa Hazuki began serialization on Earth Star Entertainment's Comic Earth Star website in June 2017. An anime television series adaptation produced by Wao World is set to premiere in October 2025.

Yasei no Last Boss ga Arawareta Logo

Synopsis[]

The year is 2800 and Lufas Maphaahl—The Black-Winged Tyrant, Great Conqueror, and leader of the Twelve Heavenly Stars—has returned. A man wakes up in the body of his MMO character 200 years after her defeat during an player-made event in the game, Exgate Online. Now, he's stuck in her body. But this isn't a game, it's real. With her reign long over, and her legacy one of fear, Lufas must journey through the world of Exgate, looking for answers, possible comrades, and all the monsters her "death" unleashed upon the world...

(Source: J-Novel Club)

List of Published Books[]

Light Novel[]

written by Fire Head. The series originated on the Shōsetsuka ni Narō website in January 2015, before being published in print with illustrations by YahaKo and serialize with Earth☆Star Novel beginning in February 2016. Yasei no Last Boss ga Arawareta! was published digitally in English as A Wild Last Boss Appeared! by J-Novel Club from July 12, 2020 to July 15, 2022.

No. Original release date Original ISBN North American release date North American ISBN
1 February 15, 2016 978-4-8030-0872-2 July 12, 2020 978-1-7183-0216-7
2 June 15, 2016 978-4-8030-0934-7 September 30, 2020 978-1-7183-0218-1
3 October 15, 2016 978-4-8030-0963-7 January 11, 2021 978-1-7183-0220-4
4 April 15, 2017 978-4-8030-1035-0 April 7, 2021 978-1-7183-0222-8
5 September 15, 2017 978-4-8030-1111-1 July 2, 2021 978-1-7183-0224-2
6 December 15, 2017 978-4-8030-1142-5 September 17, 2021 978-1-7183-0226-6
7 April 16, 2018 978-4-8030-1180-7 January 3, 2022 978-1-7183-0228-0
8 October 16, 2018 978-4-8030-1236-1 April 8, 2022 978-1-7183-0230-3
9 April 15, 2019 978-4-8030-1282-8 July 15, 2022 978-1-7183-0232-7

Manga[]

A manga adaptation, illustrated by Hazuki, Tsubasa, was serialized on the Comic Earth☆Star website from March 12, 2021.

No. Original release date Original ISBN North American release date North American ISBN
1 December 15, 2017 978-4-8030-1135-7 March 27, 2024 978-1-7183-3813-5
2 April 12, 2018 978-4-8030-1174-6 July 17, 2024 978-1-7183-3813-5
3 September 12, 2018 978-4-8030-1225-5 October 9, 2024 978-1-7183-3815-9
4 April 12, 2019 978-4-8030-1284-2 January 1, 2025 978-1-7183-3817-3
5 October 12, 2019 978-4-8030-1344-3
6 March 12, 2020 978-4-8030-1399-3
7 September 12, 2020 978-4-8030-1450-1
8 March 12, 2021 978-4-8030-1499-0
9 March 13, 2024 978-4-8030-1920-9
10 February 12, 2025 978-4-8030-2073-1

Characters[]

PROTAGONIST
 • Ruphas Mafahl • 
Twelve Heavenly Stars
 • Aries • Libra • Aigokeros • Parthenos → Virgo • Karcinos • Scorpius • Sagittarius • Kastor & Pollux • Taurus • Leo • Aquarius • Pisces • Ophiuchus • 
Gallery

TV Anime[]

On August 23, 2024, during NBCUniversal Entertainment Japan's panel at Anime NYC, an anime television series adaptation was announced. The series is produced by Wao World with Wowmax handling general production and directed by Yūya Horiuchi, with Kazuyuki Fudeyasu overseeing series scripts, Maiko Ebisawa designing the characters, and Technoboys Pulcraft Green-Fund composing the music. It is set to premiere in October 4, 2025, on Tokyo MX and other channels. The opening theme song is "Level wo Agete Butsuri de Naguru" (Level Up and Beat the Laws of Nature) performed by Kisida Kyodan & The Akebosi Rockets, while the ending theme song is "Migi Hidari" (Right and Left) performed by Yuka Nagase.

  • Staff:
    • Director: Yūya Horiuchi
    • Series Composition: Kazuyuki Fudeyasu
    • Music: TECHNOBOYS PULCRAFT GREEN-FUND
    • Original creator: Firehead (light novel) & Tsubasa Hazuki (manga)
    • Original Character Design: YahaKo
    • Character Design: Maiko Ebisawa
    • Art Director: Yukari Yasuda
    • Sound Director: Sōichirō Kubo
    • Director of Photography: Norimasa Teramoto
    • Color design: Tomoko Kohioki
    • Editing: Rina Koguchi
    • Sub-Character Design: Shōta Ueno & Takashi Kobayashi
    • Theme Song Composition: meiyo (ED)
    • Theme Song Lyrics: meiyo (ED)
    • Theme Song Performance: Kishida Kyōdan & The Akeboshi Rockets (OP)
    • Animation Production: Wao World
    • Production: WOWMAX
    • Sound Production: Tohokushinsha Film Corporation
TEASERS

TRAILERS

Game[]

The franchise's video game adaptation is titled A Wild Last Boss Appeared! ~Black-Winged Survivor~ (Yasei no Last Boss ga Arawareta! ~Kuro Tsubasa no Survivor~), and Sunsoft will launch the action game in Japanese, English, Traditional Chinese, and Simplified Chinese on Nintendo Switch, PlayStation 5, PlayStation 4, and Steam on October 5 (October 6 on Steam).

External Link[]

Yasei no Last Boss ga Arawareta! banner
Web novel at Shōsetsuka ni Narō (in Japanese)
Yasei no Last Boss ga Arawareta! banner
Manga Official Website

See Also[]

Trivia[]

to be added.