Bright-Breasted Wyverns are a breed of dragon easily recognized by their bright red markings. They are a small breed, only the size of a full-grown man. However, they have developed poisonous barbs on their feet to make up for their size. Their coloration is used to warn off potential predators of the danger, and is also used to attract mates. They are very social, and can often be seen preening in large groups.

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 "Ruddy Kingfisher" in Japanese. He is the son of Aki and Mai, and is best friends with Kawasemi. They've been best friends since they hatched, and are like brothers to each other. They are both very active, and loving racing each other through the forest as fast as they can. When they both became big brothers, they started racing with the girls too, whenever they visited. And when the girls grew up, they fell in love with each one each others sister. Kawasemi fell in love with Aka-shoubin's little sister Tama, and Aka-shoubin fell in love with Kawasemi's little sister Kohana. Aka-shoubin and Kohana are such a cute couple. They love cuddling with each other and watching sunsets. They are soul mates, and love each other so much, and they always will.