* Lee Min Ho as Goo Joon Pyo
* Kim Hyun Joong as Yoon Ji Hoo
* Kim Bum as So Yi Jung
* Kim Joon as Song Woo Bin

Synopsis :
Jan Di is an average girl whose family owns a dry cleaning store located near the luxurious and well known Shin Hwa College. Jan Di meets the four richest and most spoiled boys, F4, when she delivers laundry to the school one day. After saving a boy from committing suicide, she is admitted into the school. An incident involving Jan Di's friend, Min Ji, forces her to declare war on the leader of the F4, Goo Joon Pyo.