A spectacular, hard-hitting collaboration!!] Nami, Rio, Yuki, and Sumire, four women in the same predicament—all husbands burdened with massive debts—are told by a moneylender that there's a chance to have their debts wiped out. They travel to a secluded inn, only to discover it's a gambling den frequented by ruthless wealthy individuals. Stripped of their clothes, the four women live in fear in a dimly lit room where their screams can't be heard, under the watchful eyes of men in black suits. As a horde of ruthless wealthy individuals descends, the nightmarish gambling session finally begins…