Beorimbatgo Jeulgineun Sobakan Doksinui Sam

Catherine Panya believed escaping her difficult family would lead to a better life. She secures an affordable, large manor, unaware that the property is cursed with demonic activity. Grand Duke Chezare Christopher, a powerful sorcerer, is the only one capable of defeating these demons. For unknown reasons, he gives Catherine a key that allows her to summon him for help. The key presents both potential and uncertainty—offering a solution to her problems while hinting at possible complications.