Congratulations! Episode 50! Yuzuru's mother's friend, Hiroka, comes to stay and recalls the sexual awakening she once felt with her, and feels a secret excitement. That night, Hiroka gets drunk while talking about the memories. Yuzuru, who has grown up splendidly, feels a pain in his crotch and can't stand it and spends the night in his room. Even then, the two enjoy a sweet relationship while stealing her mother's eyes. However, Hiroka feels guilty about continuing an unfaithful relationship with her friend's son...