Akio Kato

Akio Kato (昭夫加戸, Akio Kato) also know as The Metal Master (金主 Kane Nushi) due to the fact of being a world-famous blacksmith and for have work for the Marine and the Revolutionary Army, during one of his travels he have meet Katsu and join him creating the Black Hair Pirates. He is the Blacksmith, Engineer and Inventor of the crew and he was the one who have draw the crew flag. Due to the trouble he caused in conjunction with Katsu he received an amount of 75,000,000.