Nana, a new teacher, suddenly becomes a homeroom teacher after the previous teacher retires, and although she is unfamiliar with the situation, she stands at the podium full of hope. One day, Aoi, a student who has feelings for Nana, confesses his love to her, but she has no choice but to reject him due to their student-teacher relationship. Later, a false rumor spreads that Nana had seduced Aoi and confessed her feelings to him, along with a picture of Nana and Aoi embracing each other. Aoi is asked to explain himself, but Aoi lies and confirms that Nana confessed to him...