One Piece Chapter 3, page 18: Chapter 3: Enter Zolo: Pirate Hunter

Luffy, Koby, and the little girl are sitting outside. Luffy tells her that Zolo ate all of her rice balls, making her incredibly happy. Koby wonders if Zolo is truly evil, but the girl strongly defends him, explaining that Zolo saved her from Helmeppo's wild, terrifying pet dogs. Zolo was arrested solely because he struck Helmeppo's dog to protect her. Koby realizes that Zolo is actually a good person who only targets criminals with bounties.