Sara, an American, enrolls at a girls' school in Japan and dreams of joining the calligraphy club, which she discovers is on the verge of shutting down.

A Japanese-style fantasy where a mysterious beauty and a friendly young man go around the four seasons of their hearts! A disease called that arises from secrets and worries that no one can reveal. If the seeds of worries do not bloom and cut off, the patient will decay and die. The fate of the ordinary young man, Miki Tomoya, begins to move greatly when he meets Rei Sakura Kuzono, a who specializes in treating it!