Yuka, a housewife, ends up living with her husband's father, Tokuzo, who needs nursing care. Of course, Yuka had no objection to living with her father-in-law, who raised her husband Toru on his own. In her daily life, the good-natured Yuuka is taken advantage of by the perverted old man Tokuzo. She was confused when she was used for her sexual treatment under the guise of her nursing care, but she gradually drowned in her pleasure and surrendered.
