The highly anticipated TV anime adaptation of “A Wild Last Boss Appeared!” (Yasei no Last Boss ga Arawareta!) has announced four additional cast members, an early streaming debut date, and released its third promotional video. The series, which is set to officially premiere on October 4, 2025, will now offer an early preview for select streaming platforms.
Fans eager to dive into the dark fantasy isekai will be able to watch the first episode on ABEMA and U-NEXT starting September 27, 2025, at 10:30 p.m. JST, a week ahead of its television broadcast on Tokyo MX and other channels.
Expanding the Roster: New Voice Actors Join the Cast
The latest announcement introduces four new voice actors who will lend their talents to key characters in the anime:
- Shō Hayami as Demon King Orm
- Miyu Irino as Mars
- Yoshitsugu Matsuoka as Jupiter
- Shun Horie as Southern Cross Sei
These additions join an already established cast, which includes Ami Koshimizu as the protagonist Ruphas Mafahl and Yuri Usui as Dina. Other previously announced cast members include Yukina Shuto as Aries, Hisako Tōjō as Libra, Naoya Uchida as Aigokeros, Mika Kanai as Parthenos, and Kokoro Ōmori as Virgo. The anime also features Shunsuke Takeuchi as Sword King Alioth, Tomoaki Maeno as Wise King Megrez, Daisuke Hirakawa as Sky King Merak, and Satomi Akesaka as Vampire Princess Benetnasch.
Third Promotional Video Showcases Action and Themes
The newly released third promotional video offers a deeper look into the world of “A Wild Last Boss Appeared!”, hinting at the series’ action-packed sequences and intricate plot. The video also previews the anime’s opening theme song, “Level wo Agete Butsuri de Naguru” (Level Up and Beat the Laws of Nature) by Kishida Kyōdan & The Akeboshi Rockets, and the ending theme song, “Migi Hidari” (Right and Left) performed by Yuka Nagase.
The Story of the Black-Winged Tyrant’s Return
“A Wild Last Boss Appeared!” adapts the light novel series by Firehead and YahaKo, which was initially serialized on the Shōsetsuka ni Narō website. The story begins in the year 2800 of the Mizgard calendar, focusing on Lufas Mafahl, infamously known as the “Black-Winged Conqueror.” After an epic final battle against the Seven Heroes, Lufas’s reign ends with her sealing away.
However, 200 years later, the world is threatened by devilfolk due to a collapsed power balance. In a desperate attempt to summon a new hero, humanity inadvertently awakens Lufas from her long seal. The twist? A man wakes up in the body of his overpowered MMO character, Lufas, 200 years after her in-game defeat. Now, as Lufas, he must navigate this new reality, confronting the legacy of fear she left behind and embarking on a journey to find answers, potential allies, and confront the monsters unleashed by her “death”.
Production Team Behind the Anime
The anime is being produced by Studio WAO World, with Yuya Horiuchi directing the series. Kazuyuki Fudeyasu is overseeing the series scripts, while Maiko Ebisawa is handling character designs. Takashi Kobayashi and Shota Ueno are credited with sub-character designs. The music for the series is composed by TECHNOBOYS PULCRAFT GREEN-FUND. WOWMAX is handling the general production of the anime. J-Novel Club publishes the original light novels and manga in English.
