In the center of Seoul stands Hotel del Luna, a strange old building that serves only ghosts. Jang Man Wol has been bound to run this hotel for many centuries. She carries deep resentment from a past mistake and cannot leave until she lets go of her anger. Her fate is controlled by a deity who keeps her tied to the hotel until she finds a way to change her heart.
Goo Chan Sung is a perfectionist who once worked as a young assistant manager at a major hotel group. Due to a deal made by his father, he is forced to take a position at Hotel del Luna. He brings order to the business and manages its finances, even while learning to face the unusual guests who depend on its services.
As Chan Sung becomes part of the hotel, his presence begins to affect Man Wol. Their partnership may hold the key to ending her long curse, but only if she can confront her past and allow herself to change.