Park MinHee:
A 19 year old who has the heart of an angel but can be tough when it is needed. MinHee has had a past that made her the way she is. She does not tolerate erts, but becomes weak in front of handsome guys, though those are the ones who have constantly broken her heart. 

Kim Hyun Joong: 
A 21 year old who respects everyone, especially the ladies. Hyun Joong is good with girls and has many girl swooning over him, yet he hasn't claimed a girl, especially after what he went through.

Ji Chang Wook:
A 21 year old who is a friend of Kim Hyun Joong. Chang Wook is a playboy and loves to play with girls heart. He has broken plenty hearts, but in his whole life, he's never experienced real love.