Cocoa

Set against the real Robin, Cocoa cuts a far shorter and plainer figure. She copies Robin's pre-timeskip hairstyle, and her nose echoes Robin's flat shape but sits wider between the eyes and runs longer. Her wardrobe is a simple dark purple dress paired with bright red high heels and a purse. Although Fake Luffy claimed she came closest of the impostors to her counterpart, she bears virtually no likeness to Robin at all.

Cocoa is not especially sharp, seemingly never weighing the risk of mimicking someone with countless enemies, yet she outpaces Demalo Black, spotting Chopper at once. A cruel streak shows when she viciously boots Nora Gitsune aside after writing him off, though she also reveals softer moments by offering Chopper food and a place to stay. Her loyalty is hard to gauge, but she backed Black's ambition of becoming Pirate King even while aware she was merely a tool to him.

On Sabaody Archipelago she traveled with the fakes of Zoro, Sanji, and Chopper. When the real Chopper appeared, she kicked the Fake Chopper away and held out a cucumber, only for the angry impostor to bite her head. Suited men then mistook her for the actual Robin and stuffed her into a bag alongside Fake Chopper, hauling both off. Fake Zoro and Fake Sanji carried the news to Demalo Black, who let her real name slip before shrugging off her loss as bad luck, which disgusted the real Chopper into leaving. Her abduction quietly aided Robin's escape from her own hunters. During the Zou Arc it came out that the Revolutionary Army had heard rumors of Robin's capture, unaware it was Cocoa who had been taken, and Koala later confirmed to Dragon that the real Robin was safe.