Nam Woohyun is not a kingka or a rich guy but he still one of a popular guy at Woollim High School. Not to mention that he's also a player but not until cassanova. He's also a heart machine that always throw his heart to any girl that he met and also handsome. All girls will line up just to get him, he's a heartthrob, has a lots of fangirls and all the boys are jealous of him. But he never fall in love to any girls that he met and never stick his eyes to a certain girl. Well, that's until a certain transfer female student from Japan come to his school. Can he steal her heart just like his fans? Or not? Let's find out!