Rei Kitajima, a young married woman working at an esthetic salon, is selected to be part of the staff for the shop's newly launched in-home esthetic service. Her first assignment brings her to the residence of Rei Kitajima, a regular client who was always known to favor her at the salon and had received special treatment. When the doorbell rings, Rei appears on the security camera, and promptly invites her inside. Her smile carries a sense of anticipation, as if she's been waiting for something—or someone—just like this.