Kenichi, who is fed up with his mother telling him to study hard, asks Yuka, who happened to be visiting her mother, to help him study, but...Kenichi is nervous about Yuka, who is a talented woman who graduated from a national university, is beautiful and sexy, and is a perfect adult woman.Seeing Kenichi's naive reaction, Tomoka teases him by saying, "Shouldn't I teach you about girls instead of studying?"Kenichi, completely obsessed with Yuka's goblin charm, sneaks into the bathroom to peek at her while she's bathing...