“Kill Ao”: Takeuchi Shunsuke Cast as the “Legendary Assassin”! “I was told I’m ossan-kusai, so I feel kinship with the character.”
The TV anime Kill Ao is set to air in 2026! Exciting news has just dropped, revealing that Takeuchi Shunsuke will be lending his voice to the adult form of Oogami Juuzou, the 39-year-old legendary assassin. To celebrate this announcement, a brand-new scene cut featuring the adult Oogami Juuzou in his killer persona has been unveiled, alongside an eagerly awaited comment from Takeuchi-san himself!
(C) Fujimaki Tadatoshi／Shueisha・「Kill Ao」Production Committee
About Kill Ao: A Legendary Assassin’s Second Youth
Kill Ao is the latest masterpiece from Fujimaki Tadatoshi, the acclaimed creator behind popular series like Kuroko no Basuke and ROBOT×LASERBEAM. This exhilarating new “youth redo” action-comedy, which captivated readers of “Weekly Shounen Jump” until its serialization concluded in September 2025 (with 11 volumes currently available, and the 12th volume releasing on November 4th), plunges a legendary assassin into the chaotic world of middle school! It promises a unique blend of thrilling action and heartwarming school life.
The anime boasts an impressive production team:
| Role | Name | Notable Works |
|---|---|---|
| Director | Kaburagi Hiro | GREAT PRETENDER (Director), Kimi ni Todoke (Director) |
| Character Design | Daidouji Miho | Kuroko no Basuke (Animation Director), Kimi ni Todoke 3RD SEASON (Chief Animation Director) |
| Animation Production | CUE |
The Story: A Killer’s Unexpected Transformation
Oogami Juuzou is a name whispered in the shadows, a legendary assassin who can flawlessly execute any impossibly difficult mission. However, his life takes an unexpected turn one day after he dismantles a certain organization. Stung by a mysterious bee, Juuzou loses consciousness. When he awakens, he finds himself transformed from a 39-year-old adult into a 13-year-old child – though his mind remains that of his adult self!
To his astonishment, his boss issues a new directive: “Infiltrate middle school in your current form.” What awaits him is a vibrant, chaotic, and truly unique youth school life alongside his distinctive classmates. Can Juuzou ever return to his original form? And with assassins closing in, his new, unconventional life is anything but peaceful!
Building Hype: The Teaser PV & Fan Reactions
The anime adaptation of Kill Ao was first announced with a stunning teaser PV, which garnered over 1.6 million views on YouTube! This video, which showcased the adult Oogami Juuzou fiercely wielding firearms, immediately set social media ablaze! Fans couldn’t contain their excitement, exclaiming, “Oogami-san is moving! The sense of anticipation is incredible!” and “He’s so cool, I can’t stop rewatching it!” The announcement of the 2026 anime premiere quickly garnered massive attention, even ranking 2nd on Yahoo! Japan’s trends, proving the series’ immense popularity.
Takeuchi Shunsuke Joins the Cast as Oogami Juuzou (Adult)!
Adding to the excitement, the incredibly talented Takeuchi Shunsuke has been confirmed to voice the 39-year-old Oogami Juuzou, the very “legendary assassin” whose name strikes fear into the underworld. A newly released scene cut reveals Juuzou with a cigarette casually dangling from his lips, an air of calm confidence as he points a gun – a truly iconic “killer” pose! This tantalizing glimpse guarantees that we’ll be glued to our screens, eager to see what challenges and antics await Juuzou. Takeuchi-san shared his thoughts, expressing his enthusiasm for the role:
Comment from Voice Actor Takeuchi Shunsuke
“My brain is adult, but my body is a child – I thought I’d have to do some detective work, but it doesn’t seem to be the case! That’s a relief.
I’ve often been told I’m ‘ossan-kusai’ for my age, so I feel a kinship with this character.
All the characters in this work are incredibly expressive, so I’d love to appear occasionally and just watch over their lively tempo!
Please look forward to Kill Ao!”
Stay Tuned for More Kill Ao News!
The TV anime Kill Ao is slated for broadcast in 2026. Keep your eyes peeled for further exciting updates!
Key Cast & Staff Information
TV Anime Kill Ao
Scheduled to air in 2026
- Original Work: Fujimaki Tadatoshi (Shueisha Jump Comics)
- Tankoubon: 11 volumes. The latest 12th volume will be released on November 4th (Tuesday)!
- Staff:
- Director: Kaburagi Hiro (GREAT PRETENDER Director, Kimi ni Todoke Director)
- Character Design: Daidouji Miho (Kuroko no Basuke Animation Director, Kimi ni Todoke 3RD SEASON Chief Animation Director)
- Animation Production: CUE
- Cast:
- Oogami Juuzou (Adult): Takeuchi Shunsuke
(C) Fujimaki Tadatoshi／Shueisha・「Kill Ao」Production Committee
《Nakase Koutarou》
