One Piece Chapter 2, page 13-14: THEY CALL HIM "STRAW HAT LUFFY"

Koby reflects deeply on Luffy's resolve, thinking, "I NEVER LOOKED AT IT LIKE THAT BEFORE!! MAYBE... I CAN BE LIKE THAT! IF I'M WILLING TO RISK MY LIFE TRYING......MAYBE IT'S POSSIBLE!" He stands up and asks Luffy, "DO YOU THINK I CAN JOIN THE NAVY!?" Luffy looks surprised, "THE NAVY!?" Koby declares, "WE'LL END UP BEING ENEMIES... BUT I WANT TO JOIN THE NAVY AND FIGHT THE BAD GUYS!! IT'S BEEN MY DREAM SINCE I WAS A LITTLE KID!!

Koby gains confidence, shouting, "WELL, I'M GONNA DO IT!!! WHAT'VE I GOT TO LOSE!? I DON'T WANNA BE A MISERABLE CABIN BOY MY WHOLE LIFE!! I'LL JOIN THE NAVY... AND THEN... I'LL CAPTURE ALVIDA!! BETTER TO RISK MY LIFE TRYING TO ACHIEVE MY DREAM!" Suddenly, a voice booms, "WHO ARE YOU GOING TO CAPTURE, RUNT!?" as Alvida's iron mace crashes down with a massive "KRESH!", completely destroying Koby's coffin boat. Koby screams, "AAAH!!! MY BOAT!" Alvida glares at him, saying, "YOU LITTLE SNEAK! DID YOU REALLY THINK YOU COULD ESCAPE FROM ME!?