Taehyung is an arrogant boy who acts like a prince. He's the most athletic and smartest, but that changes when Sera transfers into his high school. Sera, the antisocial new comer, beats him in everything. Sports, grades, you name. He finds her annoying. She doesn't notice him at all. But what would happen if he were to fall for her? 

Your mom is finally remarrying. It has been seven years since you seen her smile. This is all thanks to your new dad. So, of course you were happy to move into his new house. Only, he didn't mention that he's rich with three sons. Now you have two annoying brothers and a cute younger brother. Can you fit in with these strange people?

Don't stick out in the crowd. Don't smile. Don't  have any temptations. Throughout his life Lee Jonghyun has been told these rules, it has been drilled into his brain. Now it is time to see if he has what it takes