Mikako Oshima has spent all the household money at the pachinko parlor and is feeling down when a regular customer approaches her. The man says, "Hey, you really had a rough day, didn't you?" and adds, "Need some help? I could set you up." He invites her to his place, where he demands sexual services in exchange for financial assistance. Weighing her options, Mikako decides to submit—this time, serving only this one man.