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.

Daydream dragons are the hosts of daydreams and fantasies. They spend the majority of their time sitting on clouds, dropping daydreams down into the minds of people passing by. Humans who live near daydream dragons must be especially careful not to let their thoughts wander, or they could end up spending hours or even days in a trance-like waking dream state.

Aoi spends most her time with her mate Truffles. She sometimes thinks that Truffles has a Napoleonic Complex due to his size, but doesn't usually mention it. She loves to play tricks on humans and can usually convince her mate to join in on her fun. She especially likes finding large, fluffy clouds to laze on and nap.

As the eldest of the family, Aoi knows the rest of the family looks to her for guidance and does her best to be an adequate role model. However, all she really wants to do is find a nice fluffy cloud and sleep, so she usually leaves the role of leadership to her mate Truffles.