Momota greatly admires her parents-in-law because since living with them, she seems to have never seen them argue or have any conflicts. In contrast, she and her husband are completely different; there is always discord, frequent quarrels, which makes her very angry at times, and even a bit jealous of her mother-in-law for having a husband she wishes she could have: understanding, caring, and pampering. However, nothing is eternal; during a small conflict between her parents-in-law, her mother-in-law got upset and went out, while Momota's husband was working far away, leaving just her and her father-in-law at home. Seeing an opportunity, she only wore her underwear and rushed into her father-in-law's room to comfort him and 'teach' him how to make her mother-in-law stop being upset; the two ended up having an incestuous relationship.