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.

Seasonal dragons take on the characteristics of the season during which they are born. Thus, eggs that are laid in spring match the pink flowers and green buds of spring, and those that are laid in the summer grow to depict the bright green of the forest trees and the yellow of the sun. Eggs laid in autumn display the bright colors of leaves falling from trees, and those that are laid during winter take on the appearance of the icy snow.

Dragons don't get much colder this this! Youei is often called the "Ice Prince" because he acts indifferent towards all who approach him. Regarding them is a cold, almost cruel demeanor. Truthfully, though, he is actually a very gentle, loving, dragon. He just has a very difficult time expressing his feelings to others. Youei is very protective of young children and will often punish anyone who so much as raises a hand to a child in his presence.

Some call him the "Angel of Winter," though, because he will go out and guide weary travelers in dead of winter through snow blizzards to safety. Even the other denizens of the Ice Realm know not to mess humans when this dragon is around. He does not tolerate senseless violence.