One Piece: Curse of the Sacred Sword

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One Piece: Curse of the Sacred Sword is a 2004 animation and adventure movie directed by Kazuhisa Takenouchi. It stars Mayumi Tanaka, Kazuya Nakai and Akemi Okamura. It runs 1h 35m and is rated PG-13. TMDB users rate it 6.9 out of 10.

The Straw Hat Pirates landed at Asuka Island, home of the most valuable sword in the world: The Seven Star Sword. Which was said to curse anyone who takes it in possession. When they got back to the Going Merry, they discovered that Zoro is missing from his guard duty. Before they could plan out a search party to relocate him. Luffy and friends escape from the port as Marines were on their tail. They found a new place to dock, which is near a village. Whose job is to keep the Seven Star Sword sealed. Soon it was attacked by the Marines, and among them is Zoro. Luffy and the others don't know why he's helping out the Marines. But it all comes to conclusion when Luffy encounters Saga: Zoro's childhood friend from Swordsman training.