Story follows four young men who have just turned 21 years of age Lee ChooWon Seo JunYoung is an athlete who can not forget his past love Ma GooRim Baek SungHyun was once a popular singer but because of a drug scandal is mired in despair Choi SeoWon Choi TaeHwan is a medical student at prestigious Seoul National University but he has leukemia Sung DaeSung By
