A group of men and women, all deemed unable to repay their debts, are locked in a cramped space containing only a bed. As part of a social experiment to combat the declining birthrate, the rule is simple: if they can impregnate the woman, their debts will be wiped clean. They can only leave the room if a creampie leads to conception. The only woman present is Rei, a desperate office lady buried in debt from spending too much on host clubs and consumer loans. With her as the sole female, the men have no choice but to creampie her if they ever want to escape.
Among them is a man with no morals who seizes the chance to rape her, a "cock knight" who wants to fuck her but tries to protect her, and a timid man paralyzed by guilt. It's a group creampie orgy where despair, conflict, and raw sexual desire collide!
