One Piece Codexery

Pluton

The legendary warship capable of leveling islands sleeps beneath the waves.

Pluton is a legendary Ancient Weapon known throughout the world as a warship capable of destroying an entire island with a single strike. Hidden beneath the waters of Water 7, it represents one of the three great threats that the World Government seeks to suppress at all costs. Its existence was kept secret for centuries until the events surrounding Tom the Builder brought it into the light. Unlike living weapons or mythical beasts, Pluton is a mechanical marvel from the Void Century designed for total warfare. The knowledge required to build and operate it was entrusted to the shipwrights of Water 7, creating a legacy that continues to endanger those who know too much about its power.

Type
Ancient Weapon / Warship
Creator
Tom the Builder (based on ancient designs)
Location
Water 7 (Hidden beneath the city)
Status
Inactive / Dormant
Threat Level
Island Destruction Capability
Key Arc
Enies Lobby Arc
Affiliation
None (Formerly World Government Target)

Lore & Background

During the Void Century, the technology to create Pluton was developed by a civilization that opposed the rising power of the Five Elders. To prevent this weapon from being used against them again, the World Government erased its history and hunted down anyone possessing knowledge of its construction. This suppression led to the execution of Tom the Builder, who had unknowingly reconstructed the ship using forbidden blueprints. The weapon's design is said to be so devastating that its mere existence justifies a Buster Call, the ultimate military response involving multiple Marine fleets. While Poseidon controls sea creatures and Utopia remains a mystery, Pluton’s power lies in raw destructive force. It serves as a physical reminder of the past wars that shaped the current world order.

In Their Own Story

The water beneath Water 7 was dark and silent, hiding secrets older than the city itself. Inside the submerged workshop, Iceburg traced the cold metal of the hull with a trembling hand. He knew what lay beneath the rust: not just wood and steel, but the power to end nations. Above him, the sea sparkled innocently under the sun, unaware that a sleeping monster waited for a command it would never hear.

Reader's Guide

Pluton stands as one of three legendary Ancient Weapons hidden from history. While Poseidon controls sea kings and Utopia remains a mystery, Pluton is known to be a warship capable of destroying entire islands in a single strike. During the Void Century, this technology was suppressed by the World Government to maintain their power structure. Poneglyphs scattered across the seas hold fragments of its location and design secrets. The Road Poneglyphs point toward Laugh Tale, where the final truth about these weapons lies. Fans theorize that activating Pluton requires a specific key or command, possibly linked to the Will of D. Tom the Builder possessed the knowledge but was executed before he could reveal everything to Iceburg. In the current timeline, the ship rests beneath Water 7. Its existence triggered a Buster Call, showing how terrified the Marines are of its potential. If combined with Poseidon's power over sea life, Pluton could theoretically alter the balance of the world permanently.

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