In that warehouse, people with multiple debts are forced to do forced labor. Their physical and mental strength is worn down day by day, and they reach their limits... One day, Kanna, a part-time delivery girl, comes from a cheap lunch delivery shop that delivers lunches once every three days, not knowing anything about the place. The men, who have been deprived of a woman for a long time, pin Kanna down and devour her with their lust. Since then, they have been slowly eating away at Kanna's Kokoro, and every day they have been corrupting her into a tool for sexual satisfaction...