Ryo Hayakawa

Mizuki disguises herself as a boy and transfers to the same all-boys' high school her idol, Izumi Sano, a high-jump athlete who gave up on the sport, attends. In between their classmates' antics she tries to get him to jump again.

In order to uphold his title of High School Detective, a teen sleuth must protect his classmates from kidnapping after receiving a threatening letter.

Kaoruko, the daughter of a doctor and attending a prestigious high school in Fukuoka, was vaguely anxious about the future. She's even more scared when her friend Natsumi invites her to membership-based prostitution club.

Mizuki disguises herself as a boy and transfers to the same all-boys' high school her idol, Izumi Sano, a high-jump athlete who gave up on the sport, attends. In between their classmates' antics she tries to get him to jump again.