Baki is doing an isekai. According to Anime News Network, Baki Gaiden: Retsu Kaioh wa Isekai Tensei Shitemo Ikko ni Kamawan — the spinoff manga by Daisuke Ihara and Eiji Mutsui — is getting a TV anime. The premise is exactly what the mouthful of a title promises: Retsu Kaioh dies and reincarnates into a sword-and-sorcery world, then keeps solving problems the only way he knows how.
The pitch
The joke, and the appeal, is the collision. Retsu is a Chinese kenpo master from a franchise built on grounded (if absurd) hand-to-hand brutality. Drop him in a fantasy world of mages and monsters and he simply punches through it. It is a parody of the isekai formula from inside one of anime's most self-serious fighting franchises — and that contrast is the whole draw.
Here is the trailer:
Where it fits
Spinoffs like this live or die on tone. Played straight, it is another power-fantasy; played with a wink, it is one of the funnier isekai premises in a while. No premiere date or studio has been confirmed yet — this is the announcement, not the rollout.
If you want the genre sorted from best to worst first, our best isekai anime ranked hub does the work, and the seasonal best fall 2026 anime board tracks what is airing now. On SenpaiRanks, isekai is one of the most crowded genres on the board — which is exactly why a Baki-flavored twist stands out. For reference, SenpaiRanks tracks the main Baki (2018) anime at 7.13 on its dual-axis board.
Frequently asked questions
Q: What is the Baki isekai spinoff about?
A: Retsu Kaioh, the kenpo master from Baki, reincarnates into a fantasy world and keeps fighting his way through it. It adapts the Baki Gaiden: Retsu Kaioh isekai spinoff manga.
Q: When does the Baki isekai anime premiere?
A: No premiere date or studio has been announced yet. This is the initial TV anime announcement.
Q: Who created the spinoff manga?
A: Daisuke Ihara and Eiji Mutsui, based on Keisuke Itagaki's Baki franchise.
Q: Where can I find the best isekai anime ranked?
A: SenpaiRanks ranks the genre on its dual-axis board — see our best isekai anime hub.