Kanako, who lives with her daughter and son-in-law, has been doing her best to maintain a good relationship between the couple. Lately, however, her daughter's attitude toward her husband has grown increasingly harsh, causing Kanako emotional pain. Today, when her son-in-law simply complimented her home-cooked meal, her daughter became sullen, making the atmosphere tense. Late at night, Kanako heads to the kitchen and finds her son-in-law sitting there, visibly depressed. As she listens, she learns his problem isn't about the food—it's their sexless marriage. Though reluctant at first, he eventually opens up about his frustration. Kanako, moved by compassion, boldly says, "I'm sorry for my daughter. Just for tonight, I'll make it special for you," and begins licking his cock. A few days later, Kanako asks her daughter if they're planning to have children, but the daughter evades the question. Drawn to Kanako's body, the son-in-law starts pursuing her despite his wife's presence. Kanako protests, "No, that time was an exception," but he silences her with a kiss and starts caressing her body. Though she pretends to resist, her body begins responding. Her panties grow damp as he teases and penetrates her, bringing her to the brink of orgasm—when suddenly, her daughter calls out for him. Kanako breathes a sigh of relief, yet becomes aware of her own deep satisfaction and lingering arousal.