Volume 12

Volume 12 is titled "The Legend Has Begun".

Cover
The colored cover is yellow-orange, and the title is printed in dark green (fading from white), yellow, and forest green. The author's name is printed in yellow.

On the front, Luffy, Zoro, Usopp, and Sanji (carrying Nami on a cartwheel) are running on a large pile of treasure with the Going Merry behind them.

On the spine, Zoro and Usopp are featured, and the skull on the spine is colored pastel pink.

Chapters

 * 100. The Legend Has Begun (伝説は始まった): Smoker captures Buggy and Alvida and prepares to get Luffy, when he is stopped by a storm and a man named Dragon. The Straw Hat Pirates then leave Loguetown to head for the Grand Line.
 * 101. Reverse Mountain (リヴァースマウンテン): After accidentally ending up in the Calm Belt, the Straw Hats sail up Reverse Mountain to get to the Grand Line.
 * 102. And Now, the Grand Line (さて、偉大なる航路): The Straw Hats make it into the Grand Line, where they are swallowed by a giant whale.
 * 103. Whale (クジラ): The Straw Hats meet an old man named Crocus inside the whale, and Crocus explains about the whale, whose name is Laboon. They also meet a strange man and woman.
 * 104. Cape Promise (約束の岬): The Straw Hats escape from Laboon, who is anxiously waiting for a deceased pirate crew to return to him. Luffy then promises Laboon that he will come back after conquering the Grand Line.
 * 105. Log Pose (記録指針): Crocus gives the Straw Hats a Log Pose, and they agree to take Mr. 9 and Miss Wednesday to Whiskey Peak.
 * 106. The Town of Celebration (歓迎の町): The Straw Hats reach Whiskey Peak, where they receive an unusually warm welcome.
 * 107. Moonlight and Gravestones (月光と墓標): The Straw Hats pass out after the party, and it is revealed that it was a trap to capture Luffy for his bounty. However, Zoro confronts several Baroque Works bounty hunters before they can do this.
 * 108. 100 Bounty Hunters (100人の賞金稼ぎ): Zoro easily defeats the 100 Baroque Works bounty hunters.

SBS Notes

 * Oda reveals the process in which he receives letters from his fans.
 * Arlong's rings are revealed to be piercings.
 * Buggy's body parts have a limit to how far apart they can separate.

Usopp Gallery Pirates

 * Located on pages 170, 190 and 191
 * Total number of submissions featured: 19

Grand Prize: Kamou (Osaka, Japan)

Trivia

 * This, Volume 1, and Volume 61 are the only volumes that contain an entire story arc, with this volume containing the Reverse Mountain Arc.
 * Along with the Reverse Mountain Arc, parts of the Loguetown Arc and Whiskey Peak arc are contained in this volume, meaning this volume contains the most story arcs.