Aria works as an editor of a romance novels in a company and secretly dreams about falling in love with the CEO. One day, Aria finds herself magically transported into the page of a romantic novel and comes face to face with her crush Ryan. However in this fictional world, she comes to discover that his name was different so was his personality. She hopes to use all the tips and tricks she has learned from the romantic novels she had edited to snare his heart. But she soon discover in this fictional world, she wasn't the heroic female lead but an assassin who turns out to be the villian of the story!