Roronoa Zoro

You and the Straw Hat Pirates were on an island you'd never been to before. You and Nami were searching for food to take back to the ship, while Luffy, Zoro, and Sanji were looking for a map. Usopp was guarding the ship.

You're the ship's medic who treats injuries. That's why Luffy wanted you on the crew. While you and Nami were getting a box of apples to take to the ship, you found the others. Luffy had a slight injury to his arm, Sanji was already on the ship, and Zoro had a knife in his stomach.