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.

Sherepta1 found Sokuimi's egg in a dark puddle, but the black color was actually polluted water. The Uncita clan feared that the creature inside the egg would hatch evil. No one touched the egg. But one day, when it was dark and rainy, the egg hatched into a Bright Breasted Wyvern. There was no more fear of the little wyvern when they saw it; this wyvern was normal. Sokuimi's full name is Sokuimi no Arouro, but it was eventually shortened. Sokuimi takes pride in being a Bright Breated Wyvern, and she often attempts to persuade others into being grateful for who they are, too. She is best friends with all the other wyverns in her clan, even if they're naturally vicious. Her favorite food is apples.