Poor girl Jan Di attends elite Shin Hwa High where she's bullied by Joon Pyo, leader of F4 (the four richest and most gorgeous boys). Joon Pyo becomes attracted to Jan Di; however, Jan Di has a crush on Yoon Ji Hoo, Joon Pyo's best friend. This is a Cinderella story about the F4 friends and the normal girl who manages to break into their clique and win their friendship along with the romantic affections of two of the four.