Leviathans are semi-aquatic, bioluminescent entities with traits of aquatic animals like fishes and an anthropomorphic build. They are tough and aggressive, often antisocial to both humans and other entities, making them hard to deal with, especially for humans. Their skin and scales are mostly blue with varying shades, and they have three glowing blue eyes, as well as many bioluminescent circular markings and fins on their tails, arms, and legs. They rarely socializes alot w' their fellow kind.