Despite loving her husband, a married woman named Ayashi Yamasaki struggles to resist her own desires. While caring for her much older husband, Tatsurou, who is ill, Ayu frequently attempts sexual intercourse but fails due to his condition. One day, Iida is admitted to the hospital next to them. Ayu witnesses Iida masturbating, creating an awkward atmosphere. However, driven by her own frustration, Ayu then uses her sleeping husband's hand to masturbate in front of Iida. That night, Ayu visits Iida's bed…
