HMN-875 Rei Kuroshima in a Room You Can't Leave Unless You Cum Inside with Four Men

Rei Kuroshima is the only woman trapped in a small room with four men, all locked in with the promise that their debts will be wiped out if they impregnate her. As a social experiment to combat the declining birthrate, the rule is that impregnating a woman clears debts, and the only woman is Rei, a struggling office worker burdened with debts from spending on male escorts. The inevitable outcome is non-stop creampie sex until she is pregnant.