TMS Anime announced on Monday that Baki Gaiden: Retsu Kaioh wa Isekai Tensei Shitemo Ikkō ni Kamawan (Baki Side Story – Kaioh Retsu Doesn’t Mind At All If He Gets Reincarnated in Another World), a spinoff manga of Keisuke Itagaki‘s Baki manga, is receiving a TV anime.adaptation.
The manga centers on the Kenpo-style master Retsu Kaioh reincarnating into another world, after losing his life in a battle with swordsman Musashi Miyamoto.
Image via Amazon
©Keisuke Itagaki, Sai Ihara, Eiji Mutsui, Akita Shoten
The Baki Gaiden: Retsu Kaioh wa Isekai Tensei Shitemo Ikkō ni Kamawan manga launched in Akita Shoten‘s Monthly Shōnen Champion magazine in 2020. Eiji Mutsui is drawing the manga, and Keisuke Itagaki and Sai Ihara (Daisuke Ihara) are credited for the original concept and story, respectively. Aktia Shoten published the manga’s first compiled book volume in May 2021, and the 16th volume on March 6. The 17th volume will ship on September 8, and the series has over 2 million copies in circulation (print and digital combined).
The staff for Baki The Grappler STAGE had announced in July a stage play adaptation titled Baki The Grappler STAGE Gaiden -Retsu Kaioh wa Isekai Tensei Shitemo Ikkō ni Kamawan. The stage play will run from March 19-22, 2027 at Owl Spot (Toshima Ward Performing Arts Exchange Center) in Tokyo.
Itagaki’s original Baki The Grappler martial arts manga ran for 42 volumes in Akita Shoten’s Weekly Shōnen Champion magazine from 1991 to 1999. Kodama Tales began publishing the manga worldwide in English in October 2025.
The Baki sequel manga ran for 31 volumes from 1999 to 2005. Media Do releases the manga in English. After Baki, Itagaki published the 37-volume Hanma Baki manga in Weekly Shōnen Champion from 2005 to 2012. The first Baki-Dou manga, the overall fourth manga in the franchise, launched in Weekly Shōnen Champion in March 2014 and ended in April 2018 with 22 volumes.
A new Baki-Dou manga launched in Weekly Shōnen Champion in October 2018, and it ended in June 2023. (The new Baki-Dou manga uses different characters for “Baki” in the title from the previous Baki-Dou manga, although it retains the name “Baki-Dou.”) The latest manga in the franchise, Baki Rahen, launched in Weekly Shōnen Champion in August 2023.
The new anime of Itagaki’s Baki (New Grappler Baki: In Search of Our Strongest Hero) manga debuted its first season on Netflix in June 2018 inside Japan, and it ran for 26 episodes ending in December 2018. Netflix posted the first 13 episodes outside of Japan in December 2018, followed by the second half of the first season in March 2019.
The Baki: Dai Raitaisai-hen anime then debuted worldwide on Netflix with all episodes at once in June 2020.
Baki Hanma is the third Baki series on Netflix, and a sequel to the Baki: Dai Raitaisai-hen series. The anime debuted worldwide on Netflix in September 2021 with all 12 episodes.
The second season of Baki Hanma debuted worldwide on Netflix in July 2023, with the “Tale of Pickle & The Pickle War Saga” story. The anime’s “The Father VS Son Saga” story debuted in August 2023.
BAKI-DOU: The Invincible Samurai, the anime of Keisuke Itagaki’s first Baki-Dou manga, premiered worldwide on Netflix on February 26. The anime’s first 13 episodes were made available all at once. The second part or cours (quarter of a year) premiered exclusively worldwide on Netflix on June 18. All 12 episodes were made available at once.
Sources: TMS Anime’s YouTube channel, Comic Natalie