Tatsuya left his parents' home to go to college, but he returned to his hometown for the first time in a long time to visit the graves of his parents who died in an accident. He is invited to stay at his senior student Yusuke's house, but Tatsuya, who has a secret crush on Yusuke's mother Shiori, spends a sleepless night and distracts himself by masturbating. However, Shiori sees him doing so... Far from being embarrassed, Shiori, who was tipsy, begs him to "show me more." Before long, Shiori's hand reaches down to his crotch and asks, "Shall I help you?"...