Deep Sea Dragons, as their name suggests, spend most of their time in the darkest depths of the sea. They have a bioluminescent dorsal spine that serves to attract prey and communicate with their own kind. As with many deep sea animals, they generally eat whatever they can manage to bait. They rarely leave the ocean floor, surfacing only during breeding season. When they do choose to travel to the shallower depths, they avoid bright lights and will only come up far away from shore.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

King Tadahiro is a dragon of the Pseudo-Royal Hall, a clan of superb wannabes. Not much is known about Tadahiro, for obvious reasons. He lives in the deepest, darkest parts of the oceans, and surfaces very little. His only companion is King Marcello, the gruff Water dragon. As far as Marcello has told, Tadahiro is not much for exploration; rather, he has a dark sense of humor, and lurks in wait of unsuspecting giant squids so that he may lunge and scare them, smirking as they hurriedly propel themselves away.