Kazusaki has been married for two years. Living with my father-in-law, Tadao, who started half a year ago, was also good, but ... One day, Tadao fell asleep on his waist ... After that, every time he was touched by Kazusaki, who was a caregiver, Tadao, who had not been there since his wife died, unconsciously got an erection. - Kazusaki, who is sexless with her husband, can not take her eyes off her father-in-law's crotch, and finally stacks her body in the name of nursing care. The secret frustration of two people who intersect. - The days of hotly intertwining the tip of the tongue in the afternoon when her husband is not present are repeated.