While anxious about her first homeroom class, the new teacher Waka Misono earnestly faced her students and gradually built trust. Among them, there was one student she was worried about... Kato, who is introverted despite having excellent grades, couldn't fit in with her classmates and was isolated. As Waka and Kato earnestly listened to each other's concerns, their relationship gradually became intimate... And finally, the relationship that crossed the line became a rumor, and developed into a big problem involving parents and the school...