The husband is a high school student , starred by Yoochun and the wife is a class advisor , starred by So Hyon Jin .
The other 4 members will be acted as Yoochun’s classmates .
As a result of the time the three spend together, both boys fall in love with her.
Micky decides to write a song for her expressing his feelings.
Moreover , in this drama , Yoochun and the female lead will have some kiss scenes ..
In the drama , Jaejoong will fallen in love for his class advisor [starred by So Hyon Jin] , then formed a love triangle relationship with Yoochun , class advisor’s husband .
At the same time, the girl's father gets into trouble and soon U-Know and the rest of the band are called in to save the day.
Micky and Sung Min had been good friends since forever until one day when both stumble upon a beautiful girl, named Soo-Hyun, playing a flute.
Hero Jaejoong: Fell in love with his class advisor , a love triangle relationship will be formed .
Uknow Yunho: Head of Student Counsellor who is handsome but talk in a vicious way , always bully Yoochun .