Shungiku Koikawa

A man covered in scars known as the Killer of 99 Shungiku is a convict murderer who joins Mushibugy in an act of repentance. The son of a bandit he tried to avoid a life of crime until his mother is murdered and blaming his father for it he slays his gang and everyone else in his way in a killing frenzy that ends with his fathers death just to later know that she died by the hands of a member of Mushikari. Since then he looks for the man responsible for her death to avenge her.