Miki Mizuasa is captured by a dark gender transformation organization through the hands of the mafia, forced into days of relentless humiliation. Her body is dominated by extreme pleasure and pain—enemas, prostate stimulation, and torment with strapon dildos. Each ordeal steals her mind with sensation, until she fully embraces both male and female pleasures. Becoming the ultimate sex slave, she breaks through into a new realm of existence.