My father-in-law, Tomomitsu, who lives alone, moved to Tokyo and decided to live at home for a while. The daughter-in-law, Yuka, who was a former student, happily welcomes her with her husband, but she has doubts about her father-in-law's sudden visit. After a while, Tomomitsu confesses to Yuka a certain fact, feeling that she reminds him of his late wife. Yuka, who sympathized with it, wants to fill the gap in his heart even a little, and sucks a cock that is angry. However, since then, Yuka's lips overlapped with Tomomitsu who didn't want to touch him.