The Nowhere King is mainly composed of a black viscous liquid, with the only solid part of his form appearing to be his skull and antlers. His full form is that of a large, insect-like creature with six legs attached to a tendril-covered thorax, which ends in an enlarged abdomen that has several spines running along it. This ends in a globulous tail that makes up the majority of his length, and has the least consistent structure of his full body.

He has a deer-like skull with large yellow antlers that form fungal shapes. His eye sockets are usually vacant but occasionally burns with a glowing light. This light is usually green, and can change to a triangular shape as well as changes its color to either blue or yellow depending on which portal he sets his sights on; Centaurworld's or the human world's respectively. It is unclear how much control he has over the shape and color of his eyes.

The Nowhere king is ruthless, hateful, cruel, and sadistic. He hungers for conquest and war and draws immense joy from personally watching people die and the light leave their eyes.

• Black Liquid Physiology - The Nowhere King's body is composed of black, tar-like substance. He is capable of using and manipulating this liquid to capture and suffocate large groups of individuals or absorb them into his body. This also makes him impervious to most conventional weaponry. He can also turn this liquid into a solid and weaponize it against his enemies.
• Levitation - The Nowhere King despite it legs and wing like antlers, prefers to levitate and fly around in the air rather than move across the ground.
• Telepathy - The Nowhere King commands his army of minotaurs and chimeras with his mind.
• Magic Nullification - The Nowhere King's fluids somehow nullify centaur magic, as scene when it was used to effectively contain Waterbaby.

The Nowhere King was once a centaur, specifically a deer taur, who lived in Centaurworld. His job was to repair and maintain the dimensional rift's gateway to so that Centaurs and Humans could safely cross over between the two worlds.

One day the deer taur met and fell in love with a human princess, but do to the discrimination Centaurs face at the hands of humans, he believed that she would not love him as a Centaur. So, he exploited a glitch in the gateway to try and separate his human half and his animal half. The attempt worked and created a human man who would come to be known as "The General" and a talking deer that would come to be known as "The Elk".

The General would go on the reap the benefits of their actions, romancing and eventually marrying the princess. Meanwhile, the Elk, retaining his memories and ability to speak, found that he was unable to exist anywhere as an intelligent talking animal. The Elk jealously approached the General trying to convince him to undo the separation or else he would tell his wife. The General refused and attempted to kill him, but was unable to since they were still the same person, and killing one would also kill the other. Instead, The General had The Elk imprisoned in the Castle Dungeon for 10 years. The Elk was eventually freed by the Princess who then fled to the void between Humanworld and Centaurworld.

Miserable and alone, The Elk attempted to use the Rift Key to fuse humans and animals to create intelligent talking animals that would provide him companionship. Instead, he created the minotaurs, a race of violent monsters. He continued to try and create a family for himself, each time he did so, the rift key's power caused his body to corrupt and decay, gradually transforming The Elk into The Nowhere King.

As The Nowhere King, his resentment toward the Centaurs and The Humans for having a place to belong lead him to invade both worlds with his now massive army of Minotaurs, murdering countless people including Wammawink and Rider's families.

Eventually, the Princess figured out the relationship between The General and The Nowhere King, and used the Rift Key to imprison The General in Humanworld, herself in Centaurworld, and The Nowhere King in the void between the two. She also split the rift into 6 pieces, leaving one in the Humanworld, and the other 5 in the possession of 5 incredibly powerful Centaur Shamans.