One Piece "3D2Y": Overcome Ace's Death! Luffy's Vow to his Friends (2014)

Animation
Action
Adventure
Comedy
Fantasy

The special takes place during the two year before the Straw Hats reunite on Sabody. Luffy is currently in Rusukaina training to get stronger to take on the New World. However the training is interrupted when Hancock's sisters, Marigold and Sandersonia, are kidnapped by the Byrnndi World, a pirate who was locked away on Level 6 of Impel Down but escaped during Luffy's invasion to save Ace, in order to lure Hancock to him and use her as a hostage against the World Government due to her Shichibukai status. Thus Luffy and Hancock head off to confront him and save Hancock's sisters.

Cast

Monkey D. Luffy (voice)
Roronoa Zoro (voice)
Usopp (voice)
Franky (voice)
Silvers Rayleigh (voice)
Boa Hancock (voice)
Perona (voice)
Narrator (voice)
Gairam (voice)
Mr. 3 (voice)
Buggy (voice)
Sebastian (voice)
Nami (voice)
Sengoku (voice)
Portgas D. Ace (voice)
Kizaru (voice)
Brook (voice)
Nightin (voice)
Nico Robin (voice)
Elder Nyon (voice)
Boa Sandersonia (voice)
Marine (voice)
Young Portgas D. Ace (voice)
Byrnndi World (voice)
Marine (voice)
Jimbei (voice)
Oars Jr. (voice)
Inazuma (voice)
Boa Marigold (voice)
Edward Newgate / Whitebeard (voice)
Sweet Pea (voice)
Marco (voice)
Vista (voice)
Marguerite (voice)
Byojack (voice)
Tsuru (voice)
Emporio Ivankov (voice)
Cabaji (voice)
Marine (voice)
Marine (voice)
Mohji (voice)
Brandnew (voice)
Marine (voice)
Marine (voice)
Aokiji (voice)
Akainu (voice)
Ran (voice)
Sanji (voice)
Dracule Mihawk (voice)
Monkey D. Garp (voice)
Tony Tony Chopper (voice)

Crew

Assistant Director
Assistant Director
Original Music Composer
Original Music Composer
Character Designer
Art Direction
Animation Director