キルアオ

Mysteriously transformed in a kid, legendary hitman Juzo poses as a student to investigate a middle school. Later, he encounters a suspicious intruder.

Juzo discovers Mitsuoka Pharmaceuticals created the wasp and befriends the president's aloof daughter Noren. As he slowly befriends her, she's kidnapped.

Juzo turns to a classmate to catch up on his studies and joins the home economics club with Noren. Mitsuoka Pharmaceuticals makes a big announcement.