Sachiko, the mother-in-law, quarreled with her husband and rolled into her daughter and her husband's house. I fell asleep while drinking and listening to my daughter's complaints. The son-in-law carried Sachiko into the bedroom, worrying about the mother-in-law's plump body. Sachiko half-jokingly coaxed her son-in-law, saying, "Let me take off my clothes." The son-in-law got an erection when he saw her braless breasts, but Sachiko, who noticed it, became excited, and then he began to frequently coax him while teasing him. One day, when my daughter-in-law went to a girls' party and was alone, my son-in-law and mother-in-law finally overlapped.