Dragons are creatures with nearly unlimited life spans. They can survive for long periods of time, and no one has found a dragon that has died of old age. Adolescence 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. Once they hit adolescence, hatchlings change quickly, maturing to their full forms in only 2 years.

Dragons don't communicate with each other verbally, but they will growl to scare off predators and frighten prey. Young dragons will emit an extremely high-pitched squeal when they are frightened. To communicate, they use telepathy with each other and to speak to other creatures.

White dragons are pacifists and specialize in extremely strong healing magic. The only limit of this magic is that it can't bring back the dead. They only eat plants and never kill living things.

Hiroya has a huge heart; he spends his time tirelessly healing other dragons.  When he sees minor scratches on other dragons, he goes hysterical until he is allowed to heal them.  Naturally very shy, Hiroya finds his nerve and temper when he see blood or another dragon injured.  When he is not obsessing over hatcling's scratches from playfights or mature dragon's accidental injuries, he is in the water with Aldeyli, trying to improve the condition of her frayed tail.