Because the current teacher is on maternity leave, Ashida's class welcomes a new homeroom teacher, Momo-sensei. Upon taking over the class, Momo noticed the quiet, introverted student, Ashida, who didn't socialize much with others. As the school bell rang, everyone went to club activities, leaving Ashida slowly preparing to leave. Momo approached him and found out that Ashida didn't participate in any club activities, seeming to keep to himself. Being new to the school, Momo asked Ashida to show her around the school. Ashida agreed and even shared with her the legends of the school, taking her to visit the boys' restroom. Ashida's bold actions gradually sparked Momo's affection towards him, and she desired to be intimate with him. She seduced Ashida with her G-cup breasts peeking through a thin shirt, low-cut panties visible under a tight skirt, long and silky smooth legs. Unable to resist Momo's allure, Ashida was seduced by his homeroom teacher and experienced his first love encounter. However, realizing the inappropriateness of their student-teacher relationship, Ashida decided to meet Momo and end their affair. To make Ashida regret, Momo seduced another male student in front of Ashida while he was hiding in the locker room! Recognizing his feelings for the teacher, Ashida stopped deceiving himself, confessed to Momo, and wanted her to be his alone...