After accidentally witnessing his mother's intense masturbation session in the living room, the son reaches his limit by nightfall. Misako pretends to sleep with the sliding door slightly open, her bare buttocks fully exposed, provocatively teasing her teenage son. Her defenseless yet seductive posture deeply stirs his emotions. Unaware of her son creeping closer toward the alcove, she remains lying there, exposed. This scene captures a single moment symbolizing the strained relationship between mother and son, torn between desire and morality.