A real-life One Piece treasure chest sinks 651 meters underwater with Oda's secret inside
A mysterious chest has been sunk deep underwater to mark a major milestone for One Piece. The event celebrates the manga surpassing 600 million copies sold globally and the launch of its 114th volume. Creator Eiichiro Oda sealed the answer to the series' biggest question inside it.
The chest was lowered to a depth of 651 metres—a nod to chapter 651, titled The Voice from the New World, which features Fish-Man Island. This symbolic placement ties directly to the manga's lore, where the fabled One Piece treasure remains a central mystery.
The project received oversight from JAMSTEC, Japan's marine research agency, and backing from the country's Strategic Innovation Program. While the location hints at a possible connection to Japan's coastline, no exact coordinates have been made public.
In One Piece, the treasure itself is a MacGuffin—a plot device driving the story forward without its true nature ever being revealed. Oda, however, has claimed to know the answer and chose to lock it away underwater, blending fiction with real-world intrigue.
The submerged chest now rests beyond easy reach, mirroring the elusiveness of the One Piece within the story. Fans continue to speculate about its contents, though the creator's sealed answer remains hidden. The stunt underscores the manga's enduring cultural impact and its ability to merge fantasy with reality.