The staff of the TV anime adaptation of Tadatoshi Fujimaki’s KILL BLUE manga series has announced that Daisuke Sakuma is joining the cast as the assassin Shin Kohazame. Daisuke Sakuma also shared a comment about landing the role of Shin Kohazame in KILL BLUE.
The KILL BLUE anime premieres in April 2026 on TV Tokyo and affiliate channels.
The cast of the anime includes:
- Shinsuke Takeuchi as protagonist Juzo Ogami in his adult form
- Yūko Sanpei as Juzo Ogami in his kid form
- Fūka Izumi as Noren Mitsuoka
- Shūichirō Umeda as Kotatsu Nekota
- Takeo Ōtsuka as Tenma Tendo
- Atsumi Tanezaki as Chisato Shiraishi
- Yumi Uchiyama as Eri Wanibuchi
Hiro Kaburagi is the director of the KILL BLUE anime. What’s more, Miho Daidōji is the character designer, and CUE is producing the animation.
The KILL BLUE manga received a new novel adaptation, titled Kill Ao Secret Report (Kill Blue Secret Report), by Kiyoko Hoshi. The novel shipped on December 4, 2025 alongside the manga’s 13th and final compiled book volume. Shueisha serialized the KILL BLUE manga in Weekly Shonen Jump.
Lastly, here’s an overview of the series, via Shueisha:
A legendary assassin at 39. Starting over… as a middle schooler.
Jūzō Ōgami 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!?
