Kenichi is tired of his mother nagging him to study, so he decides to ask Tomoka, who happens to be visiting his mother, to help him study. Kenichi is confused by Yuka, who is not only a talented woman who graduated from a national university, but also a beautiful, sexy, and perfect adult woman. When Yuka sees Kenichi's naive reaction, she teases him, saying, ``Why don't you teach him about girls instead of studying?'' Completely Yuka