Following a friend's betrayal Yoo Jin Woo travels to Spain on a business where he stays at an old hostel owned by a former classical guitarist Jung Hee Joo. The two get entangled in a mysterious VR game.
A decorated military general from the Goryeo Dynasty is cursed to stay immortal forever as punishment for killings committed during wars to protect his country. To end his immortality he must find and marry the human Goblin's bride, who can aid in ending his painful immortality.
Before Joo Jang Mi can propose to her boyfriend, he has his best friend, Gong Gi Tae, help him break up with her. Gi Tae is eager to remain single, but his family insists he marries, so he proposes a fake engagement to Jang Min.