Instead of his parents going on a trip, Ryosuke's mother's best friend, Mai, ended up taking care of him. Ryosuke can't help but have erotic fantasies about the sweet scent and allure of Mai. He wants to touch her smooth, fair skin and nestle in her soft breasts. Ryosuke's mind is filled with thoughts of Mai, and he plans to use her freshly worn, warm underwear as a tool for masturbation, but he gets caught. However, instead of getting angry, Mai says, 'Are you satisfied with just the underwear?' and kisses him...
