One Piece, Vol. 6: The Oath

Nami's dark secret is revealed — and her connection to the fish-man pirate Arlong goes far deeper than anyone imagined. Luffy and his crew prepare to storm Arlong Park.

• Author: Eiichiro Oda
• Genre: Action / Adventure / Shonen Manga
• Series: One Piece (Vol. 6)
• Format: Paperback Manga
• Publisher: VIZ Media
• Published: 2005-03-01
• ISBN-13: 9781591167235