[HMN-875] A room where you can't leave without. When debt repayment becomes a scam, four men and one woman are gathered and locked in a cramped space. Every time she ejaculates, the repayment amount decreases, and because of the rule that allows her to leave the room, she was the only woman and got creampied over and over. Rei Kuroshima

Men and women confined in cramped spaces with only beds are considered incapable of repaying debts. As a social experiment to address the declining birthrate, the rule is that if a child gets pregnant, they can wipe out their debts. If you can finish inside and settle down, you can leave this room. The woman is Rei, a marginal office lady who spends money on host money and owes debt to numerous consumer finance companies. In a space where only one woman existed, the only option was to ejaculate inside her—a shameless man who seized the chance to rape her. In truth, he wants to have sex but is trying to protect the woman. A timid man who can't do anything out of guilt. A group filled with despair, conflict, and sexual desire in every way!