Kenshi, who came to visit his friend Miho Nanase's house, happens to see Miho's mother, Miho, naked in the bathroom. Her mature body is beautiful and erotic... The moment he swallowed his saliva at the too lewd scene, the admiration he had for Miho since childhood turned into lust. The next day, Kenji visits the Nanase house again to pour out his feelings to Miho.