Chapter 105

Luffy finishes painting the crew's mark on Laboon's brow as a pledge to return and battle the whale again, while Nami plots a course, Sanji preps fish, Usopp patches up the Going Merry, and Zoro naps. Nami's sudden scream interrupts the meal: her compass needle is spinning wildly. Crocus, amazed at how little the crew knows of the Grand Line, explains that mineral-rich islands warp the sea's magnetic fields and that the winds there defy prediction. To navigate, they need a Log Pose, a special compass that locks onto an island's magnetism. To Nami's shock, Luffy already has one, left behind on their ship by Mr. 9 and Miss Wednesday.

Crocus describes how the device records each island's field before the crew can move to the next, and that seven possible magnetic routes all eventually reach Laugh Tale, the legendary island at the sea's end. Usopp wonders whether One Piece waits there, and Crocus calls it likely but unconfirmed. The mood breaks when Luffy devours the food Sanji set aside for Nami; Sanji's retaliatory kick sends Luffy crashing into the Log Pose and shattering it. Nami boots both men into the sea, but Crocus offers a replacement out of gratitude for their kindness to Laboon. Spying nearby, Mr. 9 and Miss Wednesday realize they left their own pose with the crew and need it back to avoid their boss's wrath.

Before the pair can seize it by force, the Unluckies, the otter Mr. 13 and the vulture Miss Friday, swoop in and drop a bomb that hurls them into the ocean, where they wash ashore beside the soaked Luffy and Sanji. Mr. 9 asks the Straw Hats to carry them to Whisky Peak, citing their organization's secrecy and offering repayment. Learning the stolen pose is broken, they panic until told of the new one. Crocus warns against the Whisky Peak route, yet the crew sets off confidently, bidding him and Laboon farewell. Watching them leave, Crocus wonders aloud to Roger whether these are the pirates they had awaited. This chapter ends the Reverse Mountain Arc.