Kill Blue Anime Unveils Trailer and Additional Cast

The upcoming KILL BLUE anime revealed a new key visual and additional cast. The anime will premiere in April 2026. Joining Shunsuke Takeuchi (adult Juzo Ogami) are Yuko Sanpei (child Juzo Ogami), Izumi Fuka as Noren Mitsuoka, and Shuichiro Umeda as Kotatsu Nekota. The four were present at the event.

Atsumi Tanezaki, Takeo Otsuka, and Yumi Uchiyama are also joining the cast as Ryo Shiraishi, Tenma Tendo, and Eri Wanibuchi.

Studio CUE is animating the series with Hiro Kaburagi (Great Pretender, Kimi ni Todoke) as the director. Miho Daijdoji is in charge of the character designs.

The anime will adapt Tadatoshi Fujimaki's KILL BLUE manga, serialized in Shueisha's Weekly Shonen Jump magazine since 2023. The manga currently has 10 volumes out, with the 11th slated to release on September 4 in Japan. VIZ Media is publishing it in English.

The anime's plot is described as:
A legendary assassin at 39. Starting over… as a middle schooler. 
Juzo Ogami is a legendary hitman who has never failed an assignment, no matter how impossible. One day, after wiping out a powerful organization, he is stung by a mysterious wasp and collapses. When he wakes up, the fearsome 39-year-old assassin has been transformed into a 13-year-old boy! Before he can even process what happened, his boss delivers a new order: “In that body, infiltrate a middle school.” What awaits him is an unexpected school life filled with colorful classmates, youthful chaos, and looming danger. Can Jūzō ever return to his original form? Or will the assassins closing in on him end his second life before it even begins!? 

Source: Press Release
©Tadatoshi Fujimaki/SHUEISHA, Kill Blue Production Committee.