In order to release Robin from the Tower of Justice, Luffy and his crew realize they need a key being held by one of the six assassins sent to stop them. Left with no other option, they decide to defeat them one by one until they find it.

Printed Manga-style: book opens from left to right. Pages are read right to left. Translated from the Japanese. Originally published: Tokyo : Shueisha, 1997. "Parental advisory: One piece is rated T for Teen and is recommended for ages 13 and up. This volume contains fantasy violence and tobacco usage"--P. before t.p. "One Piece vol. 42, Water Seven part 11"--P. before t.p. "Water seven"--Cover.