Kill Blue Episode 4 Story & Preview Cuts Released: Who Will Win the Unprecedented Pacifier Duel? Juzo Is Overwhelmed

The story and preview images for Episode 4 of the TV anime Kill Blue (JP: キルアオ) have been revealed. This episode will air on Monday, May 2, 2026, at 11:00 PM (JST), and will later be available on various international streaming platforms.

Episode 4 Story

Juzo finds himself feeling confused after agreeing to pretend to be Noren’s boyfriend. Amidst this situation, Yuigan, a Chinese organization ranked second in the assassination industry, begins its move to target Mitsuoka Pharmaceutical’s research and their new drug. Shin Kohazame, a middle school assassin, transfers into the school with the intention of becoming Noren’s fiancé. Shin challenges Juzo, who is acting as Noren’s boyfriend, to a duel. The battle between Juzo and Shin is about to begin.

Introduction

Juzo Ogami is a legendary assassin capable of completing even the most difficult assignments. One day, after wiping out a certain organization, Juzo is stung by a mysterious bee and loses consciousness. When he wakes up, he has transformed from a 39-year-old man into a 13-year-old boy!

To his surprise, his boss issues a new order: "Infiltrate a middle school in that form". What awaits him is a youthful school life alongside a group of highly eccentric classmates. Will he ever be able to return to his original body?! Meanwhile, dangerous assassins are closing in on Juzo!

Source : Kill Blue Official