Rika is a seventeenyearold girl who has been hospitalized throughout most of her life because of a weak heart valve. Her condition is genetic. Rika has inherited it from her father who died during an operation. Due to being hospitalized she has no friends and spends her days reading books by her favorite author Rynosuke Akutagawa. Yichi another patient is persuaded by the nurse Akiko to keep Rika company. Dr. Natsume is Rika039s personal doctor. She has a close relationship with him. That039s why he dislikes the relationship that develops between Rika and Yichi.