Momota admires her in-laws because since living with them, she has never seen them argue or have any conflicts. On the other hand, she and her husband are completely different, always having disagreements, often getting angry. This makes her sometimes very angry and even a little jealous of her mother-in-law for having a husband she wishes for: understanding, caring, and pampering his wife. However, nothing is eternal. During a small disagreement between her in-laws, when her mother-in-law got angry and left, leaving only Momota and her father-in-law at home, she saw an opportunity. She wore only her underwear and went into her father-in-law's room to comfort him and "teach" him how to make her mother-in-law stop being angry. The two of them ended up having an incestuous relationship.