A straight-laced uncle who usually writes conventional novels suddenly begins writing erotic fiction. Noticing this change, "Rika" finds her emotions gradually intensifying each time she reads through his manuscript. Unconsciously, she begins touching her groin, lightly rubbing her clitoris. Various sex toys are scattered around the room, and she reaches for one of them. She flips the switch, surrendering herself to the pleasure. That night, while changing clothes, she sincerely resolves to become a source of strength like her uncle.