Due to her husband Kazuo frequently being away on business trips, wife Ichika Asagiri leads a cold and lonely married life. One day, overwhelmed by loneliness, she indulges in masturbation in broad daylight—only to be discovered by a passing burglar who breaks in and assaults her. Ichika desperately flees through the house, screaming for help out the window. Neighbor Ishikawa notices the commotion, rushes over, and successfully drives the intruder away. Overcome with relief, Ichika clings to Ishikawa, and the intense moment quickly spirals into an unexpected turn of events.