Based on the TV show(You're beautiful).

Wanting to add a leading female singer to their group TVXQ hosted an audition.

This is where Jaejoong comes in. He loves music and is willing to do anything to become a singer and part of TVXQ. Thinking that he will be the part of the group and get his long time passionate dream, he went to S.M Entertainment to addition, but was kicked out.

"Only females are allowed to enter" they told him. So Jaejoong being the stubborn Jaejoong he was, went back home_ dressed up as a girl and auditioned again. Would he get the spot of the lead singer? And even if he did, how would he keep the fact from his band mates that he's a guy not a girl? Would his band mates accept him and he'd get the heart of the one he loved? 

Let's figure it out with Jaejoong himself.