Choi Sooyoung

Careless

Shikshin

An Orphan

Doesn't depend on anyone and very independent

Kim Jaejoong

One of the most top singers in Korea

Looks cold and arrogant but no one actually gave the time to get to know him better.

Actually very sweet and kind but somehow a bit awkward.

Quiet

Choi Minho

A friend of Sooyoung

Also one of the most famous singers in Korea

Keeps his friendship with Sooyoung a secret because she told him to 

Childish at times