Hideo is staying at his friend Takeshi's house to study for exams. However, he can't concentrate for long, and before he knows it, he's absorbed in playing a video game. Then Takeshi's mother, Hibiki, calls out to him to take a bath. He's in the middle of playing the game and can't stop. When Takeshi refuses, Hibiki says, "Well, Auntie, I'm going to take a bath first." and leaves. "Wait a second? Does that mean Auntie will be naked?" Hideo's mind is no longer on the game...