Xiao Xue was restrained by a special material bodysuit with shackles, and then forced to have her tongue pierced. A thin chain was attached to the tongue stud, with one end connected to a small ball gag. If the gag was removed for more than three minutes, she would be electrocuted.

A person with immense influence goes to human traffickers to buy beautiful girls to keep and "raise" them. The story is about taming them in a prison-like compound where they live together, and the requirement is that they must wear shackles.