This Drama is about a thousand year old Guminho (Nine-tailed foxed), named living in human form in searching and waiting for the reincarnation of his first love, A -Eum. In an occasion, Nam Ji A, a PD of the urban legendary show came across Lee Yeon and suspected him as a supernatural being. They then came to realised that Ji A is in fact A-Eum in her past life and given that she was possessed by the Devil Serpant Imoogi previously, she still have a part if Imoogi in her. With all the supernatural being and events going against their love and fate, the drama than goes on to show how Lee Yeon and Ji A tries to take control of their own fate to be with one another, and defeat Imoogi once and for all.