S.H.A.C.K.E.R. #53 also known as SBRO comes from the Tirips civilization. As soon as they are born they are being assigned a Tirips to protect them, this civilization discovered a way to access the Retfa World, which is where the Demons repose in peace after they die, depending on your rank in the civilization you are assigned a Dead Demon, called Tirips, more or less powerful. SBRO is a Prince, and as such got gifted with a giant Demon that protect him from anything, therefore he never got hurt in his life, he's an amazing asset for The 100.