Kill Blue has solidified its place as one of the most consistent performers in Weekly Shonen Jump. The story follows Juzo Ogami, a legendary middle-aged hitman who is "assassination-obsessed." After being stung by a genetically modified wasp, he is transformed back into a 13-year-old boy. To find a cure, he must navigate the most dangerous battlefield of all: middle school. Balancing elite combat skills with the struggles of modern teenage life, Ogami finds himself protecting his classmates while fending off rival assassins.

Publication Details & Availability (May 2026 Update)

• Status: Ongoing. In May 2026, the manga has surpassed the 140-chapter mark, with the "School Festival Showdown" arc being a major highlight for fans.

• Physical Volumes: Volume 11 has just been released in English, featuring high-quality translation and exclusive author notes from Fujimaki-sensei.

• Genre: Action, Comedy, Shonen, School Life.

• Themes: Second chances, social awkwardness, tactical combat.

From the Creator of Kuroko's Basketball: Tadatoshi Fujimaki brings his signature talent for "super-powered" realism to the world of hitmen. The action is clear, dynamic, and incredibly stylish.

The "Reverse-Isekai" Vibe: Unlike many protagonists who go to a fantasy world, Ogami’s struggle to understand Gen Alpha slang and school etiquette while being a lethal killing machine provides a hilarious and fresh perspective.

Creative Combat: Every rival assassin has a unique gimmick—ranging from weaponized sports equipment to chemical-based attacks—making every fight a tactical puzzle rather than just a brawl.

Wholesome Character Growth: Beneath the gunfights, the series is a heartwarming look at a man who missed out on his youth and is finally learning the value of friendship and simple hobbies.