District 21 (U Corp.)
U Corp. is one of the 26 Wings of the City, overseeing District 21.
Overview
District 21 occupies part of the Great Lake, with most of its activity taking place in the Five Great Ports of U Corp., one of which is called Marlin Port. A large amount of District 21's Backstreets are located on colossal mobile "Portships" that move across the Lake's surface. U Corp. is known for its trade in packagings that remain completely sealed and undisturbed until their opening, and producing Resonance Tuning Forks, devices that can merge two separate objects.
Singularity
The Singularity of U Corp. is the ability to merge the essences of objects. This is primarily done through use of a resonance tuning fork, a device that will turn two affected items into one. This is demonstrated being used by ships in order to dock, with Mephistopheles' aft being caught in between two ships attaching to each other, and receiving a cut so clean that it felt as if it were never there. The Molar Boatworks Workshop also uses resonance tuning forks frequently, allowing them to use scrap in specialized tasks: this way, they collect the scrap off of Trash Crabs and are able to implement it wherever needed, as seen in their weaponry and their modifications of Mephistopheles. Molar Boatworks Fixer Sinclair describes the altered scrap to be "as if it had always been made for that purpose".
The Singularity may have a connection to Whale oil, a substance secreted by Whales that can affect living beings' sense of self, as the function of the Singularity appears quite similar to the effects of the oil. According to Ishmael, Whale oil from a living Whale turns people who touch it into Mermaids, while Whale oil from a dead one will degrade the self until there is nothing left.
Notable Groups
The Middle
The Middle is active within the Backstreets of District 21. In Marlin Port, one of the Five Great Ports, their subsidiary the Twinhook Pirates runs a kidnapping ring.
Molar Boatworks
Following their awakening from their books in the Backstreets of District 21, the members of the Molar Office opened a Workshop by the seaside.
Known citizens
 Intervallo II: S.E.A.
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Molar Boatworks
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Rain Fixer |
Mika Fixer | |||||||||||||||||||||||||||||||||||||
 Canto V: The Evil Defining
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The Pequod
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| Ahab Captain |
Starbuck First Mate |
Stubb Second Mate |
Ishmael Crew |
Queequeg Harpooneer |
Pip Crew | ||||||||||||||||||||||||||||||||||
Other
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| Ricardo Big Brother of the Middle |
Smee Twinhook Pirates First Mate |
The Indigo Elder Color Fixer |
Sinner Identities
The World of U Corp. Identities were added in the Season 3 Target Extractions as Seasonal Identities and can be obtained through Extraction or the Dispenser from Season 5 onward.
 World of the District 21 Backstreets
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Molar Boatworks
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 Ishmael Operator, Fixer |
 Sinclair Fixer | ||||||||||||||||||||||||||||||||||||||
 World of U Corp.
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Twinhook Pirates
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The Middle
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| Don Quixote Little Sister |
Meursault Little Brother |
The Pequod
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| Ishmael Captain |
Heathcliff Harpooneer |
Yi Sang First Mate |
Gallery
U Corp.
U Corp. Nest / Tourism Beach
Backstreets (Mudflats)
Resonance Tuning Forks
The Great Lake
Molar Boatworks
I Corp. - 
