Princess Yeong Myung, who lost her younger brother Yeongchang Daegun, is banished with her mother Queen Dowager Inmok Daebi to Gyeongun palace. Kim Gae-shi, the favorite wife of Gwanghae-gun, looks for a chance to kill her. In the cold, desolate Gyeongun palace, Yeong Myung feels the presence of someone hovering around her from that day on.

"I am the king of goblins, the protector of you."

The curse of spirits puts all of civilization in danger, and in fear of losing everything precious, she tries to go back to the past with the power of the Goblin.