You can control up to 10 different characters, including the primary Straw Hat crew (Luffy, Zoro, Nami, Sanji, Usopp, Chopper, Robin, Franky, and Brook) and Portgas D. Ace.
One Piece: Romance Dawn is a turn-based role-playing game originally released for the PlayStation Portable (PSP) on December 20, 2012, in Japan. This title is notable for being the first "pure" RPG in the franchise, offering fans a chance to relive the Straw Hat crew's journey from the East Blue Saga to the Marineford Arc. Key Game Features
The story covers a massive portion of the pre-timeskip era, with a main story duration of roughly 52 to 65 hours depending on playstyle. Availability and Translation