One Piece Chapter 5, page 4-6: CHAPTER 5: THE KING OF THE PIRATES AND THE MASTER SWORDSMAN

Koby explains to Zoro that Helmeppo never intended to keep his promise, which is why Luffy punched him. Zoro is stunned, uttering, "WHAT!?" Koby pleads with him, "THE NAVY IS YOUR ENEMY NOW!! PLEASE! IF I UNTIE YOU, WILL YOU HELP LUFFY!?" Zoro remains silent as Koby continues, "HE SAVED MY LIFE! I WON'T ASK YOU TO BECOME A PIRATE, BUT... LUFFY'S REALLY STRONG AND SO ARE YOU! IF YOU TEAM UP......YOU CAN ESCAPE FROM HERE! PLEASE, HELP HIM!

Suddenly, a squad of Marines surrounds Zoro and Koby in the courtyard, aiming their rifles. The lead Marine shouts, "STAY WHERE YOU ARE! CAPTAIN MORGAN HAS ORDERED YOUR IMMEDIATE EXECUTION!!!" Zoro and Koby look on in shock. Meanwhile, inside the Marine base, Luffy kicks open a door with a loud "SLAM!" shouting, "THIS MUST BE THE ROOM!" Inside, he spots three swords resting on a stand and exclaims, "THE SWORDS!

Luffy looks at the three swords on the stand, confused: "BUT THERE ARE THREE SWORDS!? WHICH ONES ARE ZOLO'S?" He glances over at Helmeppo, who is choked out on the floor, and wonders, "HUH? HE FAINTED? HMM?" Looking out the window, Luffy spots the commotion in the courtyard below and gasps, "WHAT'S GOING ON DOWN THERE!? KOBY!" Down below, Captain Morgan commands his men, "SURROUND THE FORTRESS!! IF THAT RASCAL IN THE STRAW HAT ESCAPES, YOU'LL ALL BE SORRY!!!!" Morgan glares at Zoro and Koby, shouting, "YOU THREE AREN'T SIMPLE OUTLAWS, ARE YOU!? YOU'RE TRYING TO OVERTHROW ME!!