If you see a K-drama starring Song Joong Ki, it is a hundred percent sure that it will be a hit. He never fails to stun us with his stellar acting and magnetizing visual one worldwide hit K-drama after another. 

Every character that Song Joong Ki played is immortalized in K-drama's history books, and every one of them made our hearts beat triple time. But, for our hearts's sake (because too many Song Joong Kis might be too hot to handle) let's cut it down to these two characters: Who could ever forget how Captain Yoo Shi Jin made us wish we were Dr. Kang Mo Yeon in Descendants of the Sun? Or how he made us root for Vincenzo Cassano as he fought the evils of Babel Group side by side with Hong Cha Young and the Cassano-Geumga family in Vincenzo?

Of the two swoon-worthy characters, who do you think you will fall for? Answer these questions and find out.