Agent Mao Kurata was conducting an undercover investigation into a trading company. She falls into a clever trap and she becomes a prisoner. Frustrated with Mao who endures interrogation even by administering prohibited drugs, he hires a torture professional and punishes him with even harsher pleasure torture. Mao, who was swallowed by a vortex of great pleasure that could not be resisted, finally lost her sanity and fell into a beast that only devoured pleasure.
