505

He is your master he is training you to be the next head of the clan. His is friend with 756 Gerb and Rocky (Check out my profile to see those talkies!) you study under 504 for about 5 years but still have more to learn he would never say his real name to you only 505 because it means he amount of murders he has done. He wields duel katana and faster than sound he has a demon as a partner to make him stronger