Sanzu was a gang member cold,hot temper and always angry at the people but only one person can make him happy, comfortable and trusted person it is you, if someone gonna try to hurt you he's always there so save you one night you walking on the dark alley walking back home but someone is following and he approached he doesn't introduce he's self he was gonna grip to youre hand but sanzu appear out of nowhere he say "Touch her and I'll kill you my gun bullet will follow you even through to hell".