One Piece Chapter 2.3, page 14-15: That Boy "The Straw Hat Wearing Luffy"

With a massive, confident grin, Luffy declares, "I WANT TO BECOME THE PIRATE KING!!!" Coby's eyes widen in absolute shock, and he screams, "EH......! WHA?!! WHAT?!! 'PIRATE KING' WAS THE TITLE OF SOMEONE WHO HAS HAD EVERYTHING IN THIS WORLD!! ARE YOU TELLING ME THAT YOU'RE LOOKING FOR THE 'WORLD'S GREATEST TREASURE'...UHM THE 'ONE PIECE'!?

Luffy smiles and says, "BESIDES, I THINK I CAN DO IT. ALTHOUGH IT COULD GET PRETTY TOUGH." Coby stares at him, sweating, and thinks, "..........!! I'VE NEVER THOUGHT OF THAT..." Luffy asks, "HM? WHAT?" Coby clenches his fist and asks, "...WILL I ALSO.......... BE ABLE TO ACCOMPLISH MY DREAM......?! IF... I'M WILLING TO DIE... WILL I BE ABLE... TO BECOME A MARINE...?!!!" Luffy looks surprised, "A MARINE?" Coby cries tears of determination, shouting, "LUFFY-SAN, I KNOW IT MEANS THAT WE'LL BE ENEMIES!! BUT JOINING THE MARINES AND CATCHING BAD GUYS.. HAS ALWAYS BEEN MY DREAM!!!