▁" J i ▁S ung " ▁After ▁several ▁minor ▁roles , ▁he ▁began ▁playing ▁bigger ▁parts , ▁not ably ▁in ▁the ▁television ▁dram as ▁Wonder ful ▁Days ▁( 2 0 0 1 ) ▁and ▁Sun sh ine ▁Hun ting ▁ 2 0 0 2 ), ▁as ▁well ▁as ▁the ▁North - S outh ▁rom antic ▁comedy ▁film ▁Wh ist ling ▁Princess ▁( 2 0 0 2 ). ▁▁ 2 0 0 3 – 2 0 0 4 : ▁Break through ▁Ji ▁was ▁then ▁cast ▁in ▁the ▁ 2 0 0 3 ▁g amb ling ▁drama ▁All ▁In . ▁Produ cers ▁were ▁having ▁difficulty ▁casting ▁the ▁second ▁male ▁lead ▁because ▁most ▁actors ▁were ▁afraid ▁to ▁be ▁compared ▁to ▁lead ▁actor ▁Lee ▁By ung - h un . ▁Ji ▁S ung ▁approached ▁director ▁Y oo ▁Ch ul - y ong , ▁saying ▁he ▁wanted ▁the ▁role . ▁All ▁In ▁was ▁a ▁big ▁hit , ▁and ▁Ji ▁S ung ' s ▁popular ity ▁rose ▁and ▁became ▁known ▁as ▁a ▁H ally u ▁star . ▁W ant ing ▁to ▁challenge ▁himself , ▁he ▁next ▁appeared ▁in ▁his ▁first ▁period ▁drama ▁The ▁King ' s ▁Woman , ▁playing ▁G w ang ha eg un ▁of ▁Jose on . ▁ ▁In ▁Save ▁the ▁Last ▁Dance ▁for ▁Me ▁( 2 0 0 4 ), ▁he ▁played ▁a ▁rich ▁am nes iac ▁business man ▁who ▁falls ▁in ▁love ▁with ▁a ▁girl ▁running ▁a ▁bed ▁and ▁breakfast ▁who ▁n urs es ▁him ▁back ▁to ▁health ▁( play ed ▁by ▁Eug ene ).