Trapped in a small space containing only a bed are men and women who have been deemed unable to repay their debts. As a social experiment to combat the declining birthrate, the rule is that impregnating a woman will wipe out their debts. If they can get her pregnant, they can leave the room. The only woman is Rei, a struggling office worker burdened with debts from numerous consumer finance companies due to spending lavishly on male escorts. In this space with only one woman, the inevitable outcome is...