Kidnapped into a bizarre and overwhelming space, woman Saki falls under the absolute rule of a dominant queen. She becomes the target of intense and brutal BDSM training. Impaled anally by a mysterious man wearing a full-head mask and filled with creampie inside her intestines, she suffers further harsh punishments administered by the queen—enemas, anal vibrator sessions, and penis plug insertions—driving her mind to collapse. Her screams and agonized writhing never cease.