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

Released December 31, 2014
Overview
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

Mayumi Tanaka
as
Monkey D. Luffy (voice)

Kazuya Nakai
as
Roronoa Zoro (voice)

Akemi Okamura
as
Nami (voice)

Arata Furuta
as
Byrnndi World (voice)

Bin Shimada
as
Byojack (voice)

Fumihiko Tachiki
as
Akainu (voice)

Hiroaki Hirata
as
Sanji (voice)

Hirohiko Kakegawa
as
Dracule Mihawk (voice)

Hiroshi Naka
as
Monkey D. Garp (voice)

Ikue Otani
as
Tony Tony Chopper (voice)

Kappei Yamaguchi
as
Usopp (voice)

Kazuki Yao
as
Franky (voice)
Crew
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Hirohiko Uesaka
as
Writer
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Jin Tanaka
as
Writer
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Tomohiro Nakayama
as
Writer
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Aya Komaki
as
Assistant Director
- no image
Yukihiko Nakao
as
Assistant Director

Kohei Tanaka
as
Original Music Composer
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Shiro Hamaguchi
as
Original Music Composer

Eiichiro Oda
as
Creator
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Koudai Watanabe
as
Character Designer
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Osamu Honda
as
Art Direction
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Koudai Watanabe
as
Animation Director
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Naoyuki Ito
as
Director