What if you had the chance to change yourself? 

Your look, your attitude, your style, your ways, everything.

Well, Sooyoung had that chance. When she has to move, her friends give her an idea, well, more like a bet. Create a new Sooyoung. Sooyoung was never the ‘perfect angel’, causing her parents give up on her.

She always got into trouble, and always has smart remarks. The only thing is that it means the bet will only be easier. And so, came the Bad Girl bet. The Bet? Be a Bad Girl and a Player. And, of course, she agreed.