Ultraviolet Dragons are a heat-loving breed that are most commonly found in hot, arid environments. These hardy dragons are omnivorous and will eat both plant and animal matter, even species with thorny physical defenses such as cacti. They are generally peaceful and often quite friendly, but males will become aggressive and cantankerous during the breeding season. Intense fights take place over females, sometimes resulting in injury for both combatants.

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.

His names means "Ultra Violet" in Japanese. He is the only son of Tenkei and Maika. His parents eventually went their separate ways, but Maika had already laid an egg. Even though they both found love elsewhere, they've remained good friends. Shigaisen was raised jointly by his mother and his father, and had a wonderful childhood. He's grown into a handsome dragon, who loves to race, and is one of the quickest dragons in the colony. He excels at "Cactus Dodging", a sport where two dragons enter the desert, usually at Cactus Junction. Then the two dragons race through the cacti, as fast as they can, and try not to hit the plants. The dragon's scales usually protect them, but if a stray needle finds it's way into a wing membrane, it hurts like heck. He met his mate, Qiao, when they were pitted against each other in a race. It was one of the few races that Shigaisen lost. The smaller Qiao slid right between his legs, and past the finish line. They love each other so much, and always will.