After a chain of deaths at a junior high school, new transfer student Koichi Sakakibara turns to a mysterious girl who holds the key to the dark mystery.

Mikami Yota is smitten with the archery of his older schoolmate Kishimoto, a high school senior who heads the archery club. Mikami clumsily conveys his ardent feelings to An, and…

Yoichi plays basketball at his junior high and is capable. He is granted a scholarship and attends a high school with a superlative basket team. Instead of welcoming the boy…

Arata Kaizaki, a jobless adult, undergoes an experiment that makes him 10 years younger. He goes back to high school and falls in love with Chizuru Hishiro, who is more…