When a gateway opens to a parallel universe in modern-day Korea, a king must step into another world in search of answers to a long-unanswered mystery.

Lee Young-Joon’s family runs a large company and he works as the vice-president of the company. He is smart, rich and handsome, but he is arrogant. His secretary is Kim…

The Hotel Del Luna, located in Seoul, is not like any other hotel: its clients are all ghosts. Jang Man-wol, stuck in the hotel for the past millennium, meets Goo…