Kill Blue
Juuzou Oogami 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 Juuzou ever return to his original form? Or will the assassins closing in on him end his second life before it even begins!?
About Kill Blue
Juuzou Oogami 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 Juuzou ever return to his original form? Or will the assassins closing in on him end his second life before it even begins!?
Anime Details
Currently Airing
2026
Spring 2026
PG-13
9 Total (9 Sub, 7 Dub)
★ 9.64/10
Also Known As
English:Kill Ao
Japanese:Kill Ao
Other:キルアオ Kill Ao; Kill Blue, Kill Ao, キルアオ, Kill Blue
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Frequently Asked Questions
Where can I watch Kill Blue online for free?
You can watch Kill Blue for free on ReWatch in HD. Stream all episodes securely with subtitles and dubbed audio.
How many episodes does Kill Blue have?
Kill Blue currently has 9 episodes available. New episodes are added regularly.
What genre is Kill Blue?
Kill Blue falls into the Action, Comedy, School, Shounen anime genre(s).
Is Kill Blue available in English dub?
Yes! Kill Blue is available in English dub on ReWatch with 7 dubbed episodes.
Is Kill Blue finished or still airing?
Kill Blue is currently airing. New episodes are added as they release.