The best?You skipped Kill me, Heal me?It's kinda heard to chose a best role when it comes to Ji sung.
kill me heal me was the Drama which I felt in love with him, but earlier works I bet for connection. mine is unconditional love but in his way of acting. this is my opinion.
I love #JiSung in every drama he acts… I think he is the most versatile K-actor with many difference of the rest. Since I watched him on #KillMeHealMe many years ago, I fell in love with him, not only the handsome he is, but his way of acting.