Rei was enjoying a happy marriage until she fell into a trap set by Chisato, the owner of a swingers bar, and Chisato’s adult daughter Himari. The bar’s regulars assaulted her, and her shame left her unable to seek her husband’s help. Forced to submit to the women’s blackmail day after day, Rei faces an even deeper hell when Chisato and Himari arrange another depraved demoness party.