When Han Soo-ah accepted to fake-date the new transfer student, she just wanted to shut up her ex-boyfriend and to live her college life without more drama. What she had not expected? Her so-called boyfriend turns out to be Raven Azrael the cocky, arrogant, absurdly attractive Demon Prince in the human world. In a completely fake relationship, what begins as an innocent fake relationship soon turns into late night demon fights, jealous exes, ancient prophesies, and a prince who insists that she is his destined partner. Soo-ah has more serious concerns than final exams when her ex-boyfriend suddenly regrets breaking up with her, she has to contend with a rival demon princess who wants her erased, and when a looming war threatens to destroy both worlds. What is the scariest part? She is possibly falling in love with him. When the destiny of two worlds throws her into a position where she has to choose between love and destiny, will she save the kingdom, or the demon who took her heart?