Taking a weekend break from city life, a married couple visits the wife's hometown to stay at her parents' house. Arriving at the traditional-style home located in a moderately developed mid-sized city, they are greeted by the wife's mother. As Masatoshi is embraced by her warmth, he can't help but be drawn to his mother-in-law's soft, voluptuous figure, his heart beginning to race. Amid the quiet moments they share, an unspoken, intimate tension lingers between them—hinting this connection may deepen in the days to come.