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Baki Isekai Anime Officially Announced for 2027
The Baki isekai anime is officially happening. TMS Entertainment confirmed on August 30, 2026, that Baki Gaiden: Kaioh Retsu Doesn’t Mind Getting Isekai’d, a spinoff manga of Keisuke Itagaki’s Baki franchise, is receiving a TV anime adaptation, alongside a new teaser trailer. It’s a genuinely unexpected pivot for one of anime’s most grounded martial arts franchises into full fantasy territory.
The spinoff manga has been running in Akita Shoten’s Monthly Shonen Champion since December 2020 and has surpassed 2 million copies in circulation as of August 2026. Its 17th volume arrives September 8, 2026, just over a week after the anime announcement.
Baki Isekai Anime – What We Know
The story follows Retsu Kaioh, the Kenpo-style master introduced in the mainline Baki series, after his death in a battle against the swordsman Musashi Miyamoto during Baki-Dou: The Invincible Samurai. Rather than staying dead, Retsu wakes up reincarnated in a “sword and sorcery” fantasy world, where he sets out to prove Chinese martial arts can hold up against magic, swords, and monsters unlike anything he faced in the original series.
TMS Entertainment is handling animation, continuing the studio’s run with the franchise following Baki, Baki Hanma, and Baki-Dou. The spinoff itself is based on an original concept from Baki creator Keisuke Itagaki, with Sai Ihara (also credited as Daisuke Ihara) writing the story and Eiji Mutsui illustrating the manga.
No release date, director, or voice cast has been confirmed yet, though multiple outlets have reported a general 2027 launch window. That would put the anime roughly in line with a separate stage play adaptation of the same spinoff manga, announced back in July and set to run March 19 through 22, 2027, in Tokyo, with Riku Noma reprising his role as Retsu Kaioh from two earlier Baki stage productions.
What This Means for Baki Fans
Retsu Kaioh’s death in Baki-Dou was one of the more emotional beats in recent Baki history, and director Toshiki Hirano previously said the anime intentionally leaned into that emotional weight more than the manga did. Bringing the character back through an entirely separate isekai spinoff, rather than any kind of flashback or in-universe revival, is an unusual way to keep a fan-favorite character active without walking back his death in the main story.
It’s also a notable genre swing for the franchise. Baki has built its identity on grounded, hyper-detailed martial arts storytelling, so pairing that with isekai tropes like fantasy monsters and sword-and-sorcery worldbuilding is a real departure. Fan reaction so far has leaned toward curiosity and excitement rather than skepticism, with plenty of interest in seeing Retsu’s kenpo style tested against enemies outside the franchise’s usual grounded combat.
What’s Next for the Spinoff
Beyond the 2027 window already being reported, the next concrete details to watch for are staff and cast announcements, plus an exact release date. Given TMS Entertainment’s ongoing relationship with the franchise, a formal reveal alongside other Baki-related news, similar to how this announcement arrived alongside the 17th manga volume’s release, wouldn’t be surprising.
Baki Gaiden Isekai FAQ
When does it release?
No exact date has been confirmed. Multiple outlets report a general 2027 release window.
What is it officially called?
Its official title is Baki Gaiden: Kaioh Retsu Doesn’t Mind Getting Isekai’d, based on the spinoff manga of the same name.
Who is the main character in the Baki isekai spinoff?
Retsu Kaioh, a Kenpo-style martial arts master from the mainline Baki series, who reincarnates into a fantasy world after dying in battle against Musashi Miyamoto.
Which studio is animating it?
TMS Entertainment, the same studio behind Baki, Baki Hanma, and Baki-Dou, is handling animation.
Is the spinoff connected to the main Baki story?
It’s a spinoff rather than a direct continuation, following Retsu Kaioh after his death in the main series rather than continuing the primary Baki storyline.