One Piece: Open Upon the Great Sea! A Father's Huge, HUGE Dream!

Name: One Piece: Open Upon the Great Sea! A Father's Huge, HUGE Dream!
Genre: Action, Adventure, Fantasy
Released: 2003

One Piece: Oounabara ni Hirake! Dekkai Dekkai Chichi no Yume!

Finished

7.15 score
Spring 2003
1 episode
0 watching

Animation studio:: Toei Animation

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The story opens on Pirate Zap's ship, where two of his crew, Bonnie and Max, are tired and want to escape, but unfortunately they have no money. Three children were being held captive on the ship overhear them. The eldest, Amanda, who's father was a pro treasure hunter, knows the whereabouts of a great treasure, and offers them a deal. If they help them make a clean escape, they could take all the treasure they wanted. They agree, and the five of them barely escape and make it onto a small island where they meet Luffy and his crew. Unfortunately they were pursued and Luffy and Amanda are captured and brought back to their boss, the head of the Bayan Pirates, who is also after the treasure. Now Luffy and the others must battle the Bayan pirates and find the treasure that Amanda's father had left for his children. Amanda, who has always resented adventure and treasure because her father was constantly gone in search for it, finally understands his feelings.

(Source: ANN)

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Characters & Voice Actors

Cast data: MyAnimeList (Tenrai) (opens in a new tab) · updated 27 Oct 2026

Voice actors in

Character

Luffy Monkey D.

モンキー・D・ルフィ
Main

Voice actor · Japanese

Mayumi Tanaka
Character

Zoro Roronoa
Main

Voice actor · Japanese

Kazuya Nakai
Character

Sanji
Main

Voice actor · Japanese

Hiroaki Hirata
Character

Robin Nico
Main

Voice actor · Japanese

Yuriko Yamaguchi
Character

Chopper Tony Tony
Main

Voice actor · Japanese

Ikue Ootani
Character

Nami
Main

Voice actor · Japanese

Akemi Okamura

A language is listed when MyAnimeList (Tenrai) credits an actor in it for at least one of these characters. It does not mean a dub is available to watch. The number beside a language is how many of this anime's characters have an actor credited in it.