Hellfire Wyverns are so named for their foul tempers and fiery visages. Their social structure places all females above all males, due to superior physical characteristics and violent dispositions. Forced subservience of the males causes them to become vicious, petty, antisocial, and passive-aggressive compared to the aggressive and social females. However, orphaned hatchlings raised by foster parents of another species can develop surprisingly even tempers and mellow dispositions, proving that their defining unpleasant nature is, in fact, a learned behavior.

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 name means "Hunter" in Japanese. He is the first born son of Hanabi and Shin'ichi. As a dragonet he was very lively, earning him his name, but then he was attacked by a strange dragon after he had wandered away from his parents. Mamosuke rescued him, and killed the stranger, but the damage was already done. After that he was painfully shy, and would actually act afraid of the other dragons at times. Then he met Moeko. He thought that she was gorgeous, and he loved the way that she laughed and smiled when somebody told a particularly funny joke. She caught him staring at her, and that prompted her to come over and meet him. She started to hang out with him, and before he knew it they were courting, and she had him enjoying the company of other dragons. He was still really shy, but he wanted her to be his mate, he just didn't know how to ask her. When she asked him, he was shocked but happy. He's getting better all the time, as Moeko heals his soul with her love.