On weekends, a hardworking office worker living in Tokyo prepares his apartment in a rush to welcome his mother-in-law, who is due to arrive from his wife's hometown. Imagining her journey from the countryside to the city, he feels both nervous and tense. When the doorbell rings, he opens the door to find his mother-in-law, Yuriko Makizono, standing before him—her stunning, voluptuous figure immediately filling his view. Her presence radiates such an intensely seductive aura that he can barely suppress a sigh of desire.