One Piece Chapter 43, page 4: Sanji Enters

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!"