Silver World

Silver World is the name of the Fleet Admiral Kurama's flagship, a prominent vessel in the that boasts remarkable sailing speeds and maneuvering capabilities, allowing it to transverse any dangerous waters that may lay before it. Originally, it is said to have been an old vessel belonging to a pirate from before the era of the, possessing military power second only to the themselves. What happened to the ship after it was in the hands of that pirate is unknown; history records suggest it likely passed hands a couple times before being left marooned in a secluded area of the. It was eventually uncovered by the Fleet Admiral's Inner Circle, surprisingly in prime condition, yet none were able to get close to the ship for very long before succumbing to terrible migraines. Only those of superior levels of appear capable of stepping foot onto the ship without suffering any strain.

Klabautermann
Although a rarity, the Silver World does in fact possess a living spirit residing upon its decks, which appears to have been responsible for the maintenance of the ship over the long years of inactivity. The entity resembles a small figure in all white clothing partially resembling a rabbit, complete with a top hat, formal dress shirt, and a similarly-colored cane. It appears as though the Klabautermann is responsible for why only those with high mastery over Haki can remain aboard the ship without consequence. Whether by virtue of some supernatural curse or what-have-you, the spirit is unbearably obnoxious. Between going on nonsensical rants, addressing nearly all within its range of senses as "fool" (バカメ, bakame), forcing those aboard the ship to listen to long-winded stories, and all other manner of rage-inducing behavior, it makes one question whether Haki is really necessary to maintain sanity aboard the Silver World or if it just demands ridiculous volumes of tolerance. Though given that the spirit is as old as the ship itself, the stories that it has to tell, buried underneath a sea of confusing anecdotes and pointless drivel, possesses a bedrock of rich and valuable historical information.

Behind the Scenes
The spirit of the ship was inspired by Excalibur from the anime and manga series, Soul Eater.