Aya Takayasaki moves with her parents to Kyoto, where she enrolls in an all‑girls high school. The first friend she makes at the new place is the introverted classmate Miki Takakasa. One day after school, the student council president Midori Ono invites them to a local board‑game shop. The girls agree—and from that day on, they discover a new and exciting world of board games.