Ian raised her daughter Mai alone from a young age. One day, her ex-husband, who had abandoned them both, suddenly reappears. He takes photos of Mai and shows them to his gang associates, intending to force his own daughter into lewd acts and sell the footage through underground channels. He attacks Mai while she is home alone, subjecting her to forced creampies and a gangbang with facials. He then lays hands on Ian as well, committing the brutal act of impregnating both mother and daughter at once. Thoroughly pinned down, the two eventually awaken to a forbidden pleasure...