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.

Bright pink dragons are one of the few all-female breeds of dragons. Their bright colors make them easy to spot during dragon mating season. They are primarily herbivores, but eat meat during mating season when it is brought to them by a mate. Mating seasons occur once every 200 years and can last up to 2 years.

Mirai Yumeno is a pink dragon who is shy, yet can overcome that weakness. Mirai loves to listen to the soothing tunes of other dragons make when they make a lullaby to themselves or their hatchlings. However, Mirai has a talent as well, singing a sweet lullaby to her hatchings or other dragons that she gets along with. Of course, whoever disturbs her peace will receive only fierce snarls. The full name "Mirai Yumeno" however, is named after a singer of happiness from far away.