ONE PIECE, Other Pirates “Hiken” – Fire Fist as nickname of Portgas D. Ace in ONE PIECE Posted by japanese-kanjisymbols on 2011/04/272011/05/01 I wrote “Hiken”. It’s the nickname of Portgas D. Ace meaning “Fire Fist” in ONE PIECE. “Hi” means Fire “Ken” means Fist Ace is the second division commander of the Whitebeard Pirates, and Luffy‘s adopted older brother. Who is your favorite pirate in “ONE PIECE”? I’m waiting for a request.