KILL BLUE English Sub & Dub

About KILL BLUE

If you are hunting for a new action series, KILL BLUE (キルアオ) deserves a look (2026). The setup goes like this. The setup: Juuzou Oogami is a legendary hitman who has never failed an assignment, no matter how impossible. One day, after wiping out a mighty organization, he is stung by an enigmatic wasp and collapses.

Along the way, 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 a sudden school life filled with colorful classmates, youthful chaos, and looming danger. Can Juuzou ever return to his original form?

With action at the core, fight choreography, pacing and sound design carry much of the weight. Voice work is led by Yumi Uchiyama as Eri Wanibuchi and Reiji Kawashima as Ryou Shiraishi. Think of it as a pick for viewers who like fast, high-impact fights. At 12 episodes in total, it is easy to plan a viewing schedule.

Production & Appeal

Production sits with CUE, which means the visual identity of KILL BLUE follows that studio's craft. The action focus matters here: fight choreography, pacing and sound design carry much of the weight. A 7.4/10 score points to a dependable, well-liked series. Voice casting, including Yumi Uchiyama as Eri Wanibuchi, adds to the appeal for fans who follow seiyuu. Released in 2026, it competed with that season's other new series for attention.