KILL BLUE

NEWS

MOVIE

STORY

CHARACTER

STAFF&CAST

COMIC

ENGLISH

OFFICIAL SNS

PAGE TOP

JAPANESE SITE

OFFICIAL SNS

JAPANESE

ENGLISH

KILL BLUE
Coming April 2026
CONTENTS

NEWS

MOVIE

STORY

CHARACTER

STAFF&CAST

COMIC

OFFICIAL SNS

VISUAL CHANGE

NEWS

NEWS
202510.23

Shunsuke Takeuchi Cast as 39-Year-Old “Legendary Hitman”!　
MORE

MOVIE

MOVIE

MAIN TRAILER

TEASER TRAILER

PREV

NEXT

STORY

STORY

Jūzō Ōgamiis 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 Jūzō ever return to his original form? Or will the assassins closing in on him end his second life before it even begins!?

CHARACTER

CHARACTER

Jūzō Ōgami

Noren Mitsuoka

Kotatsu Nekota

Tenma Tendo

Chisato Shiraishi

Eri Wanibuchi

Jūzō Ōgami(Adult)

Jūzō Ōgami

Yuko Sanpei

A 39-year-old legendary hitman who has been turned into a child after being stung by a mysterious wasp.
Under orders from the boss of "ZOO", he is forced to enroll in Rikka Middle School. While bewildered by his sudden school life, he gradually discovers the joy of studying. His marksmanship remains top-tier.

Noren Mitsuoka

Fuka Izumi

The daughter of major corporation Mitsuoka Pharmaceuticals, and a high-achieving honor student skilled both academically and athletically.
She helps run her uncle's ramen shop. Beautiful and admired by many, she's developed a strong dislike for boys due to being confessed to far too often. Due to a particular circumstance, she becomes a target of assassins.

Kotatsu Nekota

Shuichiro Umeda

Jūzō's partner in the secret organization "ZOO".
As Jūzō infiltrates the middle school, Kotatsu supports him constantly through an earpiece and camera-equipped glasses. Skilled at cooking, cleaning, and all household tasks, he supports Jūzō's daily life while often being dragged around by him.

Tenma Tendo

Takeo Otsuka

A second-year student in Rikka Middle School's elite group, the "Unicorn".
He is the ace of the school's soccer, basketball, and baseball teams. With superhuman athletic ability, he is known as the "Super Middle Schooler". He dreams of becoming the top athlete in every major league.

Chisato Shiraishi

Atsumi Tanezaki

A third-year student at Rikka Middle School and the head of the Home Economics Club.
Mature, caring, and dependable, she is affectionately called "Anego (big sis)" by Jūzō.

Eri Wanibuchi

Yumi Uchiyama

A brilliant researcher who leads the science division within “ZOO” and Jūzō's ex-wife.
She is working on a way to return the transformed Jūzō to his original adult form.

Jūzō Ōgami(Adult)

Shunsuke Takeuchi

A 39-year-old legendary hitman who works for the secret organization "ZOO."
Known for flawlessly accomplishing even the most impossible missions, he suddenly finds himself transformed into a middle schooler after being stung by a mysterious wasp during a mission to take down a rival group. He's divorced.

STAFF&CAST

STAFF&CAST
STAFF

ORIGINAL

Tadatoshi Fujimaki

PRODUCTION

CUE

CAST

Jūzō Ōgami

Yuko Sanpei

Noren Mitsuoka

Fuka Izumi

Kotatsu Nekota

Shuichiro Umeda

Tenma Tendo

Takeo Otsuka

Chisato Shiraishi

Atsumi Tanezaki

Eri Wanibuchi

Yumi Uchiyama

Jūzō Ōgami(Adult)

Shunsuke Takeuchi

COMIC

COMIC
©Tadatoshi Fujimaki／SHUEISHA

Divorced and raising a child, Jūzō Ōgami is a legendary hitman who was taken in by an organization as a boy. But after a run-in with a mysterious bio-weapon, he's stung and suddenly transformed into a middle schooler!
Now, with the mind of an adult but the body of a teenager, Jūzō is thrown back into the classroom. What follows is a wild, second-chance school life. A hitman's assassin-comedy reboot!

COMICS NOW ON SALE!

Read the preview here

ORIGINAL

Tadatoshi Fujimaki

COMMENT

【Comment from Tadatoshi Fujimaki
at Jump Festa 2026】

Thank you all for coming to the Kill Blue stage here at Jump Festa!
Finally—at long last—KILL BLUE is… becoming an anime!
Well, saying “at long last” might be a bit of an exaggeration, but…
Yes, it's becoming an anime!
Is this a little too laid-back? No, this is about right.
Because KILL BLUE was always meant to be a light, easy read.
Even if you brace yourself… nothing crazy is going to happen.
There are no demons, no monsters—none of that.
But there's one thing I really want to point out.
Just because a snack tastes crisp and light doesn't mean the people who make it whipped it up effortlessly.
And KILL BLUE is the same way.
It may feel light and easy to read, but it definitely wasn't created “effortlessly.”
Just look at this amazing staff and cast.
Everyone is giving it their all.
They're working with full power to bring you a light, fun KILL BLUE anime.
So if you can approach it with the same kind of excitement as,
“Hey, my favorite snack is getting a new flavor next year!”
—that level of hype is perfect.
Thanks, and we hope you enjoy the KILL BLUE anime!


Thank you very much to all the readers who have supported us until now. The manga series is coming to an end...but KILL BLUE is offically getting an anime adaptation! In the upcoming series, the old man will spring to life, the sound of ramen being slurped will echo, and even the Home Economics Club will have voices. Describing it out loud makes it hard to tell whether this is something extraordinary or just wonderfully quirky, but either way, it's happening!

The broadcast is scheduled for next year. Until then, the remaining comic volumes will be released, also thinking of doing something on my own. I'm not really sure if it's remarkable or not, but but I hope you'll continue to enjoy KILL BLUE at your own pace and look forward to the anime with gentle anticipation.

Jūzō Ōgami(Adult)

Shunsuke Takeuchi

COMMENT

Jūzō has the mind of an adult but the body of a child, so at first I thought I might need to do some detective work—but it seems that's not the case! What a relief!
I've often been told I seem a bit older than my age, so I feel a certain kinship with this character.
All of the characters in KILL BLUE are incredibly expressive, and I'm excited to pop in from time to time and watch over their energetic interactions.
Please look forward to KILL BLUE!

Jūzō Ōgami

Yuko Sanpei

COMMENT

A long-held dream of mine to play an old guy has finally come true, and I'm incredibly excited.
I'll be teaming up with Takeuchi-kun as an uncle duo, and we'll do our best together!!
I can't wait to see what kind of KILL BLUE anime we can create alongside this wonderful cast and staff.
Please look forward to the peaceful(?) school life of these vibrant youths… and one middle-aged man.
For now, I'm going to slurp some ramen.

Noren Mitsuoka

Fuka Izumi

COMMENT

I'm Fuka Izumi, and I'm honored to be playing the role of Noren Mitsuoka!
Noren is truly incredible… She's tough, positive, and has such a strong sense of self that you'd never believe she's a middle schooler.
As she spends more time with Jūzō, she begins to show a wider range of emotions, so I hope to portray her honestly and with all the feelings that come naturally.
All of the characters in this series speak and act so candidly that you can't help but grow attached to them.I'm really looking forward to seeing them come to life so vividly in the anime!

Kotatsu Nekota

Shuichiro Umeda

COMMENT

Nice to meet you!
I'm Shuichiro Umeda, and I'll be playing Kotatsu Nekota.
He's Jūzō's reliable partner, his go-to home-cooked-meal “mom,” and very much a Gen Z kid at heart. I'm really looking forward to supporting “Aniki (big bro)” together with Kotatsu!
Thank you all!
Now I'm craving Kotatsu's omurice!

Tenma Tendo

Takeo Otsuka

COMMENT

I was thrilled this year watching Shohei Ohtani make his big two-way comeback in Major League Baseball and I never imagined that I would get to play a “three-way” superstar “Unicorn.” I'm truly happy to take on this role.
I'm excited to see what kind of performance Tenma Tendo will deliver in the anime. I'm also very much looking forward to his interactions with the other characters and the overall atmosphere of the series.
Thank you, and please look forward to what's to come!!

Chisato Shiraishi

Atsumi Tanezaki

COMMENT

I'm Atsumi Tanezaki, and I will be voicing Chisato Shiraishi. She's affectionately called “Anego (big sis)” by those around her. As the head of the Home Economics Club, she has a bit of a motherly presence as well. I hope to watch over Jūzō and the others with that same warm perspective.
I hope you enjoy the TV anime KILL BLUE!

Eri Wanibuchi

Yumi Uchiyama

COMMENT

Following the voice comic, I'm truly honored to be involved with KILL BLUE once again!
I'm excited to play Eri Wanibuchi, Jūzō Ōgami's ex-wife, and I hope to bring out the fun and charm in her character!
In addition to the engaging story, the series is full of unique, captivating characters, and I hope everyone looks forward to seeing them in action along with all the dynamic battle scenes!