A man named Hiroshi has been living alone since his wife passed away. One day, he finds himself unable to move due to illness. His stepdaughter, Ayane, returns home and discovers him lying unconscious on the floor. She begins performing CPR but doesn't stop even after he regains consciousness. Instead, she continues kissing him passionately while sucking on his tongue. As they continue their intimate encounter, both of them become aroused; Hiroshi's erect penis throbbing against Ayane's hand while her heart races with excitement. Using her seductive skills, Ayane convinces herself that she's just providing care for her sick stepfather when really she's driven by her own desires for him...