It was previously believed that purple dragons were exclusively female, but this is not the case. Recent environmental shifts have revealed the existence of both genders of this breed. Female behavior is well known; they are primarily herbivores but will eat meat during mating season. On the other hand, very little is known about the behavior and habits of male purple dragons.

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.

Yuna was given her name for her scales. Her scales tend to shine like the stars in the night sky, which reminded Milez of the name Yuna.

SandSea comes from the Ogir-Yensa Sandsea, which is where Milez found Yuna's egg.

Her scales are white, and instead of dark blue eyes, hers are a bright ice blue.

Yuna spends her time acting much like a motherly dragon towards all the dragons Milez owns. She keeps all the eggs near her and warm, while she keeps a close eye on the hatchlings that play nearby.

She enjoys Taborrier's company when he comes around to help her look after the eggs and hatchlings. One day, Taborrier had chosen her as his final mate.

Yuna is good friends with Fiona, and enjoys long, telepathic conversations with her.