Koichi Kono, the manager of a real estate agency, was scheduled to inspect a property in Kushiro, Hokkaido, accompanied by his new, attractive mature female employee, Rei Sakashita. However, this inspection was not merely a business trip—Kono's true intention was to possess Rei's body. During the journey, Kono reached his hand toward Rei's crotch; although she showed slight discomfort, she was clearly drawn to him. At the abandoned house they arrived at, the two gave in to their desires, building an intense physical relationship. Under the pretense of a property inspection, their bond gradually deepened.