Although they are poor, the mother and daughter live together happily. One day, the mother meets the president of the company where she works part-time and remarries. The president has a son, and the four of them live together, but the father and son are evil parents who are after the daughter's body... In the morning, the daughter endures the deep throating of her stepfather and stepbrother, rapes them in the bathroom one after another, and is impregnated in a threesome at night, but she endures it for her mother's sake. The mother turns a blind eye, not wanting to return to poverty... a twisted family relationship is formed.