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Underworld (One Piece)

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Parent: Shichibukai Hop 2

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Underworld (One Piece)
NameUnderworld
SourceOne Piece
CreatorEiichiro Oda
TypeShadow economy
LocationGrand Line
First appearanceManga (unspecified)

Underworld (One Piece)

The Underworld in One Piece refers to the vast, shadowy network of illegal markets, brokers, and intermediaries that operate alongside and beneath the formal structures of the World Government. It matters because it shapes power balances between the Marines, Revolutionary Army, Warlords, pirate crews, and royal houses by supplying weapons, information, and clandestine services that official institutions cannot or will not provide.

Overview and Role in the One Piece World

The Underworld functions as an informal global system linking crime syndicates, corrupt officials, and private merchants across the North Blue, South Blue, East Blue, West Blue, the Grand Line, and New World. It supplies banned commodities such as SMILE zoan productions, illegal Devil Fruit deals, counterfeit Berries, mercenaries, espionage, and assassination services. The Underworld is a stabilizing yet destabilizing force: it preserves order through patronage and silence while enabling upheaval by arming challengers to established power like the Blackbeard Pirates or supplying Revolutionary Army initiatives led by Monkey D. Dragon.

Actors in the Underworld frequently exploit gaps in the World Government's jurisdiction, using Impel Down escape routes, corrupt Marine officers, and private enclaves in ports such as Sabaody Archipelago and Dressrosa. Its existence forces institutions like the Five Elders and the Celestial Dragons to navigate moral compromises to retain influence.

Geography and Key Locations

Underworld activity concentrates in transshipment hubs and politically ambiguous zones. Major nodes include the Sabaody Archipelago, where human trafficking and slave auctions coexist with Underwater shipping facilitated by Admiral Kizaru-era patrol gaps; Dressrosa, notable for its underground arms trade and the hidden dealings of the Donquixote Family; and Amazon Lily, which can host covert meetings away from male-dominated jurisdictions.

Other key locales are Jaya and Skypiea satellite routes used by smugglers, the lawless waters around Fish-Man Island, and remote islands like Punk Hazard and Dressrosa's hinterlands that serve as testing grounds for prohibited technologies such as SAD production and experimental Zoan development. International black markets also rely on discreet nodes within Mariejois's supply chains and on corrupt officials embedded in G-5 and other Marine detachments.

Governing Powers and Major Organizations

The Underworld lacks a single sovereign authority but features powerful organizations and brokers. Notable entities include the Donquixote Family, which ran complex clandestine operations; the Cipher Pol series (notably CP0 and CP9), which blur official intelligence with covert contracts; and private mercenary groups like the Blackbeard Pirates' affiliates. Crime families, pirate merchants, and ex-Marines form networks that negotiate with the World Nobles and local governors.

Some criminal syndicates operate as corporate-like monopolies in sectors such as slave trade and illegal weaponry, while intermediaries—referred to in canon as "brokers"—connect buyers and sellers across seas. Certain organizations provide quasi-legitimate services: Baroque Works displayed corporate masking, and firms tied to the Shichibukai system often acted as fronts for Underworld commerce.

Economy, Trade, and Illicit Activities

The Underworld economy is diverse: trade in Devil Fruits, SAD production and artificial fruits like SMILE, slave trafficking, assassination-for-hire, smuggling of contraband weapons and secrets, information brokering, and laundering of Berries. Supply chains run through corrupt ports and utilize technologies such as clandestine Lab facilities on islands like Punk Hazard.

Illicit finance is often laundered through shell companies, noble patronage, and legitimate trade routes. The demand side includes warlords, underground rulers, revolutionaries, and ambitious pirates—each seeking advantages in the struggle for power. The Underworld thus exerts a strategic economic influence on statecraft, naval logistics, and the competition among figures like Gol D. Roger's legacy claimants and contemporary pirate captains.

Notable Figures and Factions

Key names associated with the Underworld include brokers and crime lords, such as members of the Donquixote Family like Donquixote Doflamingo, who directly controlled underworld routes; clandestine agents from Cipher Pol units including Rob Lucci; and intermediaries who liaised with the Celestial Dragons. Pirates like Marshall D. Teach exploited Underworld channels to obtain dangerous allies and weapons, while the Revolutionary Army used smugglers to move people and information covertly.

Other relevant actors are corrupt Marines, rogue scientists (e.g., those involved in SAD and artificial fruit research), and merchant houses that facilitated legal façade for illegal trafficking. These actors often intersect with major powers such as the World Government, Revolutionary Army, and the Four Emperors system.

Significant Events and Plot Involvement

The Underworld has driven numerous plotlines: the sale and trafficking of SMILE fruits on Dressrosa that sustained Donquixote Doflamingo's power; clandestine loans and manipulations that affected the Wano Country arc and the rise of figures like Kaido; the use of Underworld contacts by Crocodile and secret operations tied to Impel Down and Marineford incidents; and the dissemination of information that led to the formation of major alliances including the Straw Hat Pirates' dealings with brokers such as Jewelry Bonney's networks.

By providing weapons, shelter, and intelligence, the Underworld has repeatedly altered the balance between central authority and insurgent forces, shaping the trajectory of the Great Pirate Era and the political consolidation efforts of the World Government.

Category:Fictional underground economies Category:One Piece locations Category:Organized crime in fiction