Haruhiko Shimotsuki accepts a temporary position teaching art at a prestigious girls' school — a placement that puts him in the same building as Chitose, the younger sister of his ex-girlfriend Mariko Misawa. The connection to Mariko was not anticipated when Haruhiko took the job. The feelings he begins to develop for Chitose are even less anticipated. The school provides the setting; the relationship that develops between them is the story.