Duke si raja dingin tiba-tiba dihadapkan dengan Rinha, aktris top dari dunia lain. Ingin kembali ke dunianya, Rinha mengajukan perjanjian hubungan dengan sang raja. Terjebak di hubungan sandiwara, apa rasanya ya jadi pendamping Duke dari Utara di dunia yang tak dikenal?
Rinha, Korea’s most beloved actress, gets into an accident while on set. When she regains consciousness, she realizes she has traveled to the Kingdom of Iklein and meets the northern duke Calcion, who saves her from a demonic beast. Calcion asks her to be his fake lover so she can get into socialite and discover the conspiracy happening in his castle.