SEE ALSO: Following controversy, Seventeen adjusts album price and offers explanation

He was described by the director as someone with as much energy as James Dean!�The praise didn't end there, a co-star affectionately called him 'little brother,' a person who is easygoing, polite, and innocent. At one point, Kris is even heard teaching a Korean phrase to a co-star on set!�

'Galaxy' Wu Yi Fan then explained why he was drawn to the role, one of the reasons being that it is a role that he's never come across before. If you want to hear the details behind why he chose to take on the rebellious ringleader of an underground syndicate, watch the clip above to find out!�

Tip: krismasdays�