One Piece Chapter 43, page 3-4: Sanji Enters

Suddenly, a large Marine ship sails up alongside them, catching the crew by surprise. Luffy blinks and says, "HUH?" Usopp points in shock, shouting, "IT'S... THE MARINES!" Luffy looks bewildered, asking, "WHEN DID IT...!?" while Usopp panics, "THEY'RE NOT GOING TO ATTACK US NOW, ARE THEY?" Johnny leans over the railing and yells toward the Marine ship, "HEY! WE AIN'T PIRATES OVER HERE!" Yosaku points out, "AH, SOMEONE'S COMING OUT!" as a figure appears on the Marine vessel's deck.

A handsome Marine officer with slicked-back light hair and a striped suit stands on the deck of the Marine ship, looking down at the Going Merry. He wears iron knuckles on his fingers. A text box introduces him: "MARINE HEADQUARTERS LIEUTENANT 'IRONFIST FULLBODY'". Fullbody inspects their flag and remarks, "HMM, NEVER SEEN THAT PIRATE FLAG BEFORE..." He then addresses them directly: "I'M THE LIEUTENANT OF THE MARINE HEADQUARTERS KNOWN AS 'IRONFIST FULLBODY.' WHO'S YOUR CAPTAIN? NAME YOURSELF." Luffy proudly steps forward and replies, "I'M LUFFY. I JUST FINISHED MAKING MY PIRATE FLAG THE DAY BEFORE YESTERDAY!" Johnny and Yosaku burst into laughter at Luffy's blunt honesty, mocking him: "H-HE SAID... THE DAY BEFORE YESTERDAY! HAHA!" and "AHAHA! GOOD ONE!" Usopp also introduces himself, shouting, "AND I'M USOPP!