Seiran Gakuen is an exclusive private boys' high school. It's the start of the summer break and Yoshikuni has decided to spend this year's summer at the school's Shoraikan dormitory, as have Mitsuhiro, Kanji and Iwatsuki. All four boys have their own reasons for not going home.
Yoshikuni's girlfriend is Hiroko, but with his own reasons, he tells her he doesn't want to see her for a while. Hiroko isn't satisfied with
