Hanabi Natsuno comes home after six years in Tokyo, bringing with her a flood of memories. She moves to Tachibanakan, the local female dormitory, as she prepares to start high school. Hanabi stumbles upon a bare-naked beauty upon her arrival and falls head over heals for her right away. She also runs across Konomi Fujiwara, an old acquaintance from her youth whom she hardly recalls. Hanabi is introduced to the dorm's other residents and rapidly becomes the focus of their attention. Hanabi understands that it's going to be an interesting school year as the girls immediately take to the newcomer and begin gunning for her affection—subtly or obtrusively.