Mihina, formerly an office lady, quits her job to work as a hot spring companion in order to repay her boyfriend's debts. She encounters Kitashima, the president of her former company, who arrives on a hospitality trip with a group of men. Having previously borrowed money from him, Mihina is forced to obey his every command. Her body becomes Kitashima's property, and she is made to provide intense sexual services to the men he brings along. Surrounded by multiple men and repeatedly creampie'd, Mihina gradually becomes aware of her own masochistic desires. No longer in control of her own body, she surrenders completely to pleasure, embarking on a new life defined by submission and arousal.