Dokkaebi (Gong Yoo) needs a human bride to end his immortal life. Meanwhile, the Angel of Death has amnesia. Somehow these two meet and live together. They see off those who have passed away and are now leaving this world.
The series will be simulcast in China. The story set up in the early of Goryeo regime. Hae Soo (IU), a 25 year old girl from modern era got transported back to Goryeo dynasty and got trapped in the conflicts and struggles between princes of Wang’s House. There, she falls in love with Wang So (Lee Joon Ki) who makes other people tremble with fear.