Hikaru, who lives with her father after her mother's passing, has a routine of secretly watching her father's belongings and indulging in self-pleasure. Her actions are caught on camera by the neighbor uncle, who then blackmails her. Desperate not to let her father find out, Hikaru submits to the uncle, losing her virginity, and is further gang raped by the uncle's friends. Her innocent heart transforms into that of a sex slave. Men relentlessly impregnate her day after day, and eventually, Hikaru becomes a depraved girl who even desires pregnancy.
