Kill Blue (2026)

Kill Ao / キルアオ

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Synopsis

Juuzou Oogami has known little else in his 39 years than the daily routine of a professional killer. Taken in as a child by the organisation Z.O.O. and trained to become an assassin, he never truly had a childhood. Even now, dealing with children remains foreign to him. Although he was once married and has a daughter, he sometimes wonders whether they might still be a family if he had been better with children.

During his latest mission, however, he is stung by an unknown wasp and loses consciousness. When he comes to, he is horrified to discover that his body has reverted to that of his 13‑year‑old self. What sounds like absurd science fiction has become his reality. As he is still trying to figure out how he is supposed to earn money in this state, his boss presents him with a fitting assignment: Juuzou is to inspect Rikka Middle School, the school the boss’s daughter is set to attend. What begins as a tedious duty – especially for someone so hopeless with children – soon turns into an unexpected experience when he discovers how much he actually enjoys learning. But he must not lose sight of his true goal. And, as fate would have it, the daughter of the very organization responsible for creating the mysterious wasp ends up in his class: Noren Mitsuoka.

Will Juuzou manage to balance school life with the work of a killer without blowing his cover – and perhaps even uncover clues about how to regain his original body?

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