Synopsis: The Start of Living with a Demon.

The blunt and inflexible college student Kwon Jeong-ha absolutely despises Gwak Hyun-woo, his handsome and popular classmate who toyed with and then dumped the senior Jeong-ha had secretly been in love with.The two are like cats and dogs growling whenever they meet.But one day, because of a strange necklace Jeong-ha picks up, their relationship is completely turned upside down."It'll probably sound crazy, but I'm a demon."Hyun-woo, who claims to be a demon, tells Jeong-ha that all the magical power he had stored inside the necklace has been absorbed by Jeong-ha and that unless he gets it back, Jeong-ha will die.The only way to return the magic is through physical contact!And so, Jeong-ha ends up living together with the demon.+