Doo Ho Choi, Korean Superboy!
If you ever watched Dong Hyun Kim's or Korean Zombie's interviews, they give special shout out to Doo Ho Choi who is currently fighting in Japanese tournaments.
He is VERY young and is a very good striker. he is not in the UFC but I am hoping he will go to the UFC soon. He currently fights in Deep, and is a FW. The uploader of the video probably made this HL video so the credit goes out to him.