Maybe this helps https://www.soompi.com/article/1575321wpp/shin-jae-ha-explains-his-tendency-of-playing-the-villain-personal-acting-philosophies-and-more
Why is Shin Jae Ha playing shady characters lately? First in Crash Course in Romance, now Taxi Driver 2 and his next drama is called Biography of a Villain. What the heck is going on with Shin Jae Ha?
Thank you God!
Still one of my favorite K-dramas.