The woman who had a family Rena decided to secretly sell herself to her husband in a secret club introduced to an investment company because her husband's debt was burdened. It is a secret club with customers with fastidious habits with SM. Rena, a woman with a family of Duc Hanh, did not know anything, even shed tears before the cuckoo service in the interview, but it was only the beginning of shame and terrible pain. Rena, who should have cried because of embarrassment to be tied and sobbing when taking the enema, gradually becoming addicted to the depth of violence, even the shot of the vagina turned into a married woman who accepted it in sobbing ... The first monopoly of the Sanwa Publisher, Rena Ai Kisaragi, SM's first comprehensive work