Married woman Rena decides to secretly sell herself to her husband in a secret club introduced to an investment company because of the debt her husband incurred. It's a secret club with customers who have difficult habits with SM. Rena, a clueless virtuous married woman, even shed tears over the blowjob service during the interview, but that was only the beginning of terrible shame and pain. Rena, who should have cried with shame when tied up and sobbed while taking an enema, gradually became addicted to the depths of sadism, even vaginal squirting turned into a woman who had the family accepts it with sobs... Sanwa Publishing's first exclusive actress, Rena Ai Kisaragi, SM's first comprehensive work