A new trailer has been released for the upcoming A Wild Last Boss Appeared! TV anime series, which previews the show’s main opening theme. The trailer was revealed during the “Earth Star Novels 10th Anniversary Summer Festival” event. The series is scheduled to premiere in Japan in October 2025.
The opening theme highlighted in the latest trailer is “Level wo Agete Butsuri de Naguru” by Kisida Kyodan & The Akebosi Rockets.
Yuya Horiuchi (Love Live! Nijigasaki High School Idol Club Season 2 assistant director) is directing the anime series, with Kazuyuki Fudeyasu (Flower and Asura) as series screenwriter and Maiko Ebisawa (Love Live! Superstar!! Season 3 Episode 8 co-dance part animation director) as character designer. Takashi Kobayashi and Shota Ueno are credited as sub-character designers, while Wao World is in charge of the animation production.
Meanwhile, the anime’s voice cast stars:
- • Ami Koshimizu as Lufas Maphaahl
- • Yuri Usui as Dina
- • Yukina Shuto as Aries
- • Hisako Tojo as Libra
- • Naoya Uchida as Aigokeros
- • Mika Kanai as Parthenos
- • Cocoro Omori as Virgo
- • Shunsuke Takeuchi as Alioth
- • Tomoaki Maeno as Megrez
- • Daisuke Hirakawa as Merak
- • Satomi Akesaka as Benetnasch
The anime is based on the isekai dark fantasy light novel series, written by Firehead and illustrated by YahaKo, which was first published by Earth Star Entertainment on February 15, 2016 and concluded on April 15, 2019. Nine total volumes were published in Japan.
The A Wild Last Boss Appeared! light novels also inspired a manga adaptation by Tsubasa Hazuki in June 2017. The original Shosetsuka ni Naro web novel began in October 2015 and concluded in April 2019.

J-Novel Club releases the light novel series and manga in English. It describes the main synopsis of the light novels as:
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…
Sources: A Wild Last Boss Appeared! Official Twitter, Anime News Network
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