After realizing she has transmigrated into an otome game as Loris Breyan, the villainous noble demon tamer, the protagonist faces a dire situation: two of her demon attendants, Agade and Nile, are lost or imprisoned, pushing their contract to the breaking point. Warned that losing two attendants will cause a fatal contract backlash, she discovers her attendants’ 'dark levels'—indicators of their anger—are dangerously high, nearing the point they'll turn deadly against her. With Agade imprisoned in the Underworld Abyss and destined to kill her if freed, she must now urgently win the loyalty of her demons to avoid her imminent death.