Yamato Akitsuki moves to Tokyo for high school and lives with his aunt, who runs a public bath in the local area. His aunt's business caters exclusively to women. During his first year at school, Yamato meets Suzuka, a new student who initially catches his attention due to her striking appearance. As he gets to know her, Yamato discovers Suzuka lives just next door, which sets off a series of changes to his daily routine.
