Minami returns to her hometown from another prefecture as a student teacher, but her parents have also moved away, so she lives in a hotel while attending school. There, she meets Jun, the daughter of her former teacher from her school days. Minami opens Kokoro to Jun, who is friendly, and the two gradually become closer. One day, Jun contacts her and says, "I had a fight with my parents, so I want to stay over." Understanding her family situation, and pushed by her impulse, she lets him stay for one night. At the hotel, she sympathetically listens to Jun's story, but...