Though the matter of training was left up to the individual, every last Noble with an aggressive disposition who recognized himself as a warrior trained at the Capital's Training Center. Here they are trained in the Noble Fighting Arts. It was at the center that Nobles were sorted and tested on their aptitude as warriors based on three factors: physical ability, self-possession, and belligerence. While this was comparable to humanity's conscription system, whether these Nobles continue more advanced training was up to the individual. Some warriors like the humans were cowardly while some were brave.