Inspired by her friend's pregnancy, Rika decides to start trying for a baby with her husband. She waits for him to come home wearing sexy lingerie to arouse him, but the building manager accidentally sees her and takes advantage of her. Although she realizes something is wrong and tries to stop him, the manager's rampage cannot be stopped, and he ejaculates inside her. From the next day on, he takes advantage of his position to visit Rika's home every day and indulge in her fresh, young body. Eventually, she cannot refuse the manager when he brings along his subordinate, and the newlywed wife is ejaculated by both of them.