This is Hong Ju Pyo a black belt who helped to open the first Gracia Barra Jiu Jitsu Academy in Korea. I had the privilege of studying under Coach Hong for a year and can tell you without hesitation that this is guy thrives off of adrenaline.
In addition to having his black belt in BJJ he is a: 7th grade Kendo master, holder of black belts in Tekyon and Tae Kwon Do, practitioner of western boxing and Muay Thai, as well as having his certification in sports medicine and acupuncture. To top things off he leads Tai Chi sessions at 6AM (which I rarely made!). This man is a true inspiration and had a huge impact on me.
On the wall behind him to the left is his master Marcos Barros, on the right Master Carlos Gracie Jr. and in the center Carlos Gracie who helped co-found Brazilian Jiu Jitsu with his brother Helio Gracie.