Every role of You Ah In is a masterpiece, just unforgettable, incredible masterpiece. He can be so smart, so dumbfounded, so sexy, ...lovable ... you name it - he is the best at any role! All his roles are so good, so heart touching that stay in your heart forever, but my favorite is Secrete Affair. I watched it SEVERAL times; he is so sexy in this one. In Burning he is in love and is shaken to his bones by a psycho to the point that is capable of killing when loses his love one. And this happens naturally, without any scruples, or hesitation. After watching it, I am shaken myself, had to take some time to breathe. The info about him in Wikipedia is ENDLESS, so impressive that keep you at awe for a long time! His rewards are another surprise to keep him in your heart for a long time!