KILL BLUE Anime Release Date, Trailer, Cast & Story: The Hitman Reborn in April 2026

A legendary assassin.

A middle school classroom.

One very dangerous second chance at youth.

KILL BLUE is officially stepping out of the manga pages and onto screens in April 2026, and its newly released main trailer confirms this won’t be a typical school anime. Blending action, comedy, and a bizarre “redo-your-youth” twist, KILL BLUE is shaping up to be one of 2026’s most unpredictable anime debuts.

KILL BLUE Anime: Release Date & Where to Watch

Here’s what’s officially confirmed:

• Premiere Window: April 2026

• Format: TV anime series

• Announcement Event: Jump Festa 2026

• Animation Studio: CUE

• Streaming: Expected worldwide release (platform TBA)

The anime was unveiled alongside a main trailer and key visual, giving fans their first real look at Jūzō Ōgami’s chaotic double life.

What Is KILL BLUE About?

At its core, KILL BLUE asks a simple but wild question:

What happens when the world’s deadliest hitman is forced to relive middle school?

The Premise

Jūzō Ōgami is a 39-year-old legendary assassin, feared across the underworld and undefeated in every mission he’s ever taken. But after completing a high-risk job, he’s stung by a mysterious wasp—and wakes up transformed into a 13-year-old boy.

Before he can even process this nightmare, his boss delivers a new order:

“In that body, infiltrate a middle school.”

Now trapped between algebra exams and assassination attempts, Jūzō must survive school life while enemies close in—and figure out whether he can ever return to his original form.

Why KILL BLUE Stands Out From Other School Anime

While the setup sounds comedic, KILL BLUE isn’t just a gag series.

What makes it different:

• A fully experienced adult mind trapped in a child’s body

• Genuine emotional tension between youth and regret

• Action sequences that clash with everyday school absurdity

• A protagonist who slowly discovers what he missed the first time around

It’s part action comedy, part identity crisis—and surprisingly introspective.

Full Voice Cast Revealed

The anime boasts a strong cast, with dual performances for its main character:

Main Cast

• Jūzō Ōgami (12-year-old): Yuko Sanpei

• Jūzō Ōgami (Adult): Shunsuke Takeuchi

• Noren Mitsuoka: Fuka Izumi

• Kotatsu Nekota: Shuichiro Umeda

• Tenma Tendo: Takeo Otsuka

• Chisato Shiraishi: Atsumi Tanezaki

• Eri Wanibuchi: Yumi Uchiyama

• Shin Kohazame: TBA

The split casting for Jūzō reinforces the contrast between who he was—and who he’s becoming.

Staff & Production Details

• Animation Production: CUE

• Original Creator: Tadatoshi Fujimaki

Fujimaki is best known for:

• Kuroko’s Basketball

• ROBOT×LASERBEAM

His trademark mix of sharp character writing and unconventional premises is fully intact here.

Manga Background & Availability

The original KILL BLUE manga:

• Ran in Weekly Shōnen Jump from April 2023 to September 2025

• Concluded with 13 volumes in Japan

• Is published in English by VIZ Media

English Release Schedule

• Volumes 1–4: Available now

• Volume 5: February 3, 2026

• Volume 6: April 7, 2026

The anime’s timing aligns perfectly with the manga’s international rollout.

What to Expect From the Anime Adaptation

Based on the trailer and source material, expect:

• High-contrast tone shifts between comedy and danger

• Stylish action choreography in confined settings

• School-life arcs that actually change the protagonist

• A mystery surrounding the wasp, the syndicate, and Jūzō’s possible cure

This isn’t about power escalation—it’s about identity and consequence.

Why KILL BLUE Could Be a Breakout Hit in 2026

2026 is stacked with sequels and big franchises—but KILL BLUE offers something different:

• A completed manga foundation

• A fresh genre blend

• A premise that’s instantly clickable and meme-worthy

• Strong crossover appeal for action and slice-of-life fans

If executed well, this could become one of the year’s surprise hits.

Final Thoughts

KILL BLUE takes a ridiculous concept and treats it with just enough sincerity to make it work. A hitman reliving middle school shouldn’t feel this tense—or this funny—but that contrast is exactly why the series works.

With a confirmed April 2026 premiere, a strong cast, and a completed story to draw from, KILL BLUE is shaping up to be one of the most talked-about new anime of the year.

Second chances are dangerous.

Especially when you’re already lethal.