Hatred of the Straw Hat Crew - Enter Iron Mask Duval

The Mermaid and starfish, named Keimi and Paggag, respectively, thank the Straw Hats for helping them, and Keimi offers to give them some Takoyaki (fried octopus), after she meets up with her friend Hacchin as thanks. However, a call from him reveals that he has been kidnapped by the Fishman Macro Gang as bait for her. Luffy decides to rescue him for the Takoyaki, and the crew sets sail for their hideout. En route, they're briefly attacked by the Flying Fish Riders, a gang of ruffians aiding the Macro Gang, who are commanded by a masked man named Duval.