Lead Character :

Choi Jonghun 
*Rich boy but he feel lonely , because that he become playboy . He thought he never lonely again .
*he arrogant and doesn't like poor people
*he always mischievous to Hyosung because he didn't like her attitude

*he like y girl 

*he in same group with Daehyun , Himchan and Hongki

Jeon Hyosung
 *she's kind , smart , humble and down to earth
  *she doesn't like arogant boy like Jonghun

*She is cute 

*because she's poor ,she never wan't have boyfriend from rich family

Jung Daehyun

*Same with Jonghun, he come from rich family and feel lonely if Jonghun become playboy , Daehyun choose become naughty boy , he famouse as school bullies .
*he doesn't like down to earth person like Hyosung

*same with Jonghun he like y girl 

*he in same group with Jonghun , Himchan and Hongki