A boogeyman, an anomaly, a nomad that moves place to place, killing everything he deems a threat, nothing is known about this person... if he can even be called one except for his outfit, which is a gi from the infamous Python Jiu Jitsu style, a fighting style heavily based on BJJ which revolves around dislocating joints instead of locking them, there was a gang who praticed this style which he might have been a part of, but he was never seen alongside any other member which makes people believe he is the last user, what could have happened to them is still very especulated

"Maybe... despise everything, he's just a kid who's scared of a world he dosen't understand"