One Piece Chapter 2, page 7-8: THEY CALL HIM "STRAW HAT LUFFY"

The dust clears, revealing the three pirates knocked out on the ground. Alvida looms over them with her iron mace, demanding, "YOU LAZY SWABBIES! WHO'S THE FAIREST THROUGHOUT ALL THE SEAS?" The pirates quickly grovel, stammering, "LADY ALVIDA! YOU ARE... OF COURSE!" Alvida snaps, "DON'T PLAY DUMB WITH ME! I COULD HEAR YOU TALKING ALL THE WAY FROM THE SHIP! WHICH ONE OF YOU HAD SUCH A 'GREAT NAP'!?" She glares at them, asking, "AND YOU DARE TO DEFY ME?" One pirate stammers, "W-WHAT!? NEVER! NOT IN A MILLION--" Suddenly, Luffy's voice echoes from nearby, cheerfully repeating, "THAT WAS A GREAT NAP!!!" Alvida and her crew gasp in surprise.

Alvida's crewmen point accusingly at Koby, shouting, "UH... CAPTAIN! WE HAVE AN INTRUDER!! YEAH! THAT GOOD FOR NOTHIN' KOBY BROUGHT THAT STRANGE FELLER HERE!" Alvida is suspicious, wondering, "WHAT!? COULD HE BE A BOUNTY HUNTER......AFTER THE PRICE ON MY HEAD? KOBY! YOU TRAITOROUS LITTLE RUNT!" She ponders, "BUT THE ONLY BOUNTY HUNTER BOLD ENOUGH TO COME HERE..." One crewman suggests, "THAT'S RIDICULOUS!! THE NAVY HAS HIM LOCKED UP..." but another counters, "BUT IF HE'S AS CLEVER AS THEY SAY... HE MIGHT'VE ESCAPED!" Alvida grins, "AND THEY SAY THAT THE INFAMOUS RORONOA ZOLO IS THAT CLEVER!!" Meanwhile, in the forest, Koby asks Luffy, "UM... ARE YOU OKAY? ARE YOU HURT? AFTER GETTING KNOCKED AROUND SO MUCH YOU MUST BE--" Luffy laughs, "HAHAHAHA! I'M FINE, JUST A LITTLE SURPRISED IS ALL. MY NAME'S LUFFY! WHERE AM I?