Seo Hee Soo might not be the most popular girl on campus but that fact has never really bothered her. With dreams of becoming an accomplished lyricist, Hee Soo has more important things to worry about than her popularity. Still, she has to admit that not being popular does have its fair share of drawbacks, particularly when it comes to finding a guy. Having never had a boyfriend before, Hee Soo would very much like to change that. The problem is, she has no idea how. With zero experience with guys and self-esteem so low it’s almost non-existent, Hee Soo doesn’t see herself finding a guy anytime soon. But all of that changes when she happens upon a magical notebook that claims to have the power to make anyone fall in love with someone for a month. Unable to resist the temptation, Hee Soo gives the notebook a try, a fact that horrifies her best friend, Jung Shi Ho, once he discovers the truth. Unable to ignore Hee Soo’s sudden popularity with the guys, her co-worker, Park Se Jin is curious to know her secrets. With guys now lining up for her, will Hee Soo be able to handle the inevitable complications of juggling so many suitors, all while keeping the truth a secret from prying eyes?