Julian and Flynn are top-tier rival hunters who absolutely despise one another. When they end up trapped in an S-rank dungeon together, they make a shocking discovery: it’s an "Eros Dungeon," and the only way out is by completing explicit quests with their partner. Forced into humiliating intimacy just to survive, they find themselves torn between deep-seated hatred, stubborn pride, and irresistible pleasure. As the stakes rise, their emotions begin to dangerously run wild.