Kusuko harbors a secret crush on the resident class playboy, Mishima. Yet the constant rotation of ever‑changing girls who keep their hands on his arm keeps her at a safe distance. Mishima interprets her standoffish behavior as coldness and confronts her, but they manage to clear up their misunderstandings and eventually begin dating. As she learns more about him, Kusuko finds herself falling harder for him, until one day she overhears him speaking on the phone with another girl.