Nephew Toru visits his aunt Ayanoyama's house, only to find out she's going on a date with her boyfriend. Left alone, Toru grows jealous of her lover. Late at night, Ayanoyama returns home clearly heartbroken, revealing she's been dumped. Overcome with loneliness, she begins masturbating while recounting the painful experience. Watching her, Toru can no longer restrain himself and touches her sleeping body. When Ayanoyama wakes up, he desperately tries to force himself on her, but she resists. However, after he honestly confesses his true feelings, everything changes...