After losing her husband, Yumiko began living with her daughter and son-in-law. The couple warmly welcomed her, and family life started peacefully. One night, unable to sleep, Yumiko noticed faint sounds coming from her daughter's bedroom. Curious, she quietly peeked through the door and saw the couple engaged in intimate acts. Smiling to herself, she whispered, "They're so close," and returned to her room. A few days later, the same situation occurred. Again, Yumiko secretly watched them through the crack of the door, secretly indulging in the scene. The next day, upon learning her daughter was going on a trip, Yumiko pretended to remain calm while inwardly smirking. On the day of the trip, with her daughter gone, Yumiko noticed her son-in-law was home alone. Pretending it was accidental, she entered his room, gently smiled at the embarrassed young man, and softly said, "It's alright," then offered, "Shall I help you?"