You made a bet with your 4 best friend, all of you still dont hae any idea what will be stake. All you girls know is THE LOSER HAVE TO DO EVERY-SINGLE-THING that the winner say... And if you break the rules, you have give a $10000 bucks of your money~ But, if you lose that bet... Will you accept everything that the winner say to you? or you just break your promise and then letting out  your $1000 money? and what if you HAVE TO PRETEND TO BE A BOY? in YOUR BROTHER'S ACADEMY? 

Your name is LEE your-name [age:20]. You are an unexpected girl, you are NOT an ordinary girl. You are a HUGE FAMOUS person's little sister, even though  you both were a sibling, you and HIM never seen like you both were a sibling. Well, some people thought that you and him had twisted yout both personality. I mean, he acted like a GIRL (well still gentle of course) while you, acted like~~ the way he should do... You had a perfect life... by the way summers were came, and it