Rebecca is the daughter of Scarlett and Kyros, and niece of Viola. Formerly the crown princess of Dressrosa, she gave up her title to live with her father and now serves as a lady-in-waiting to her aunt. Imprisoned under Donquixote Doflamingo's rule, she was forced to fight as a gladiator. She competed in the Corrida Colosseum tournament for the Mera Mera no Mi, reaching the finals before Sabo won. She allied with the Straw Hat Pirates during the Dressrosa Arc.