Hikari is a mother whose son is struggling with his academic advancement. One day, she is approached by her son's homeroom teacher, who uses the promise of falsifying grades as bait, and she impulsively gives in to him. However, her son witnesses this, and exploding with jealousy and lust, he abandons his studies, declaring, "I'm done with entrance exams!" Upon discovering that her son secretly harbors feelings for her, Hikari transforms into a nympho mother to make him change his ways. She presents a condition: "If you don't take the exams, I won't let you cum," and corners her son with teasing play. However, this act of being a nympho, which was supposed to be a pretense, gradually makes Hikari realize her true feelings for her son... #HanchoP
