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

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.

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Mayumi Tanaka

Mayumi Tanaka

Monkey D. Luffy (voice)

Kazuya Nakai

Kazuya Nakai

Roronoa Zoro (voice)

Akemi Okamura

Akemi Okamura

Nami (voice)

Arata Furuta

Arata Furuta

Byrnndi World (voice)

Bin Shimada

Bin Shimada

Byojack (voice)

Fumihiko Tachiki

Fumihiko Tachiki

Akainu (voice)

Hiroaki Hirata

Hiroaki Hirata

Sanji (voice)

Hirohiko Kakegawa

Hirohiko Kakegawa

Dracule Mihawk (voice)

Hiroshi Naka

Hiroshi Naka

Monkey D. Garp (voice)

Ikue Otani

Ikue Otani

Tony Tony Chopper (voice)

Kappei Yamaguchi

Kappei Yamaguchi

Usopp (voice)

Kazuki Yao

Kazuki Yao

Franky (voice)

Keiichi Sonobe

Keiichi Sonobe

Silvers Rayleigh (voice)

Kotono Mitsuishi

Kotono Mitsuishi

Boa Hancock (voice)

Kumiko Nishihara

Kumiko Nishihara

Perona (voice)

Mahito Ohba

Mahito Ohba

Narrator (voice)

Mitsuo Iwata

Mitsuo Iwata

Gairam (voice)

Nobuyuki Hiyama

Nobuyuki Hiyama

Mr. 3 (voice)

Shigeru Chiba

Shigeru Chiba

Buggy (voice)

Shouto Kashii

Shouto Kashii

Sebastian (voice)

Toru Okawa

Toru Okawa

Sengoku (voice)

Toshio Furukawa

Toshio Furukawa

Portgas D. Ace (voice)

Unsho Ishizuka

Unsho Ishizuka

Kizaru (voice)

Cho

Cho

Brook (voice)

Yuko Mizutani

Yuko Mizutani

Nightin (voice)

Yuriko Yamaguchi

Yuriko Yamaguchi

Nico Robin (voice)

Ako Mayama

Ako Mayama

Elder Nyon (voice)

Chiwa Saito

Chiwa Saito

Boa Sandersonia (voice)

Daisuke Matsubara

Daisuke Matsubara

Marine (voice)

Daisuke Sakaguchi

Daisuke Sakaguchi

Young Portgas D. Ace (voice)

Hiromu Miyazaki

Hiromu Miyazaki

Marine (voice)

Katsuhisa Houki

Katsuhisa Houki

Jimbei (voice)

Keiji Hirai

Keiji Hirai

Oars Jr. (voice)

Kenji Hamada

Kenji Hamada

Inazuma (voice)

Kimiko Saito

Kimiko Saito

Boa Marigold (voice)

Kinryu Arimoto

Kinryu Arimoto

Edward Newgate / Whitebeard (voice)

Kujira

Kujira

Sweet Pea (voice)

Masakazu Morita

Masakazu Morita

Marco (voice)

Masaya Takatsuka

Masaya Takatsuka

Vista (voice)

Masumi Asano

Masumi Asano

Marguerite (voice)

Minori Matsushima

Minori Matsushima

Tsuru (voice)

Mitsuo Iwata

Mitsuo Iwata

Emporio Ivankov (voice)

Moriya Endou

Cabaji (voice)

Ryohei Arai

Ryohei Arai

Marine (voice)

Ryohei Nakao

Marine (voice)

Shigenori Souya

Shigenori Souya

Mohji (voice)

Shinichi Yamada

Shinichi Yamada

Brandnew (voice)

Sohta Arai

Sohta Arai

Marine (voice)

Takahiro Fujimoto

Takahiro Fujimoto

Marine (voice)

Takehito Koyasu

Takehito Koyasu

Aokiji (voice)

Umeka Shouji

Umeka Shouji

Ran (voice)