One Piece Chapter 2.3, page 21: That Boy "The Straw Hat Wearing Luffy"

Alvida lies unconscious on the ground, completely defeated. The pirates panic, screaming, ".........!!! HIS ARM... HIS ARM EXTENDED!! CAPTAIN! ALVIDA-SAMA WAS BEATEN!!! BY THAT MONSTER!!" Luffy turns to the remaining crew members and points at them, commanding, "PREPARE A BOAT FOR COBY! HE WANTS TO JOIN THE MARINES!! SO STAY OUTTA HIS WAY!" Terrified, the pirates quickly bow and reply, "Y... YES." Luffy smiles warmly, "HEE HEE HEE HEE!" Coby cries tears of joy and gratitude, whispering, "LUFFY-SAN..."