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.

Black dragons are warriors. They are strong and capable in battles of force, but also ample magic users, capable of devastating opponents with their spells. Their bright eyes give them excellent night vision, which is why they generally hunt during the night.

Unlike other black dragons, Chara is not at all an aggressive dragon, but does like to socialize a lot and learn new things. She only wishes that Furosia would feel the same way. Chara will often leave the cave to tour the landscapes of the world from the great Himalayan Mountains to the deserts of the Sahara. She often likes to spend a lot of time visiting different volcanoes of the world and meeting the red dragons that live there. Chara's favorite volcano is Mt. Kilauea in Hawaii since it is always active. When Chara is at home she likes to keep the cave, but lets Furosia do all the hunting, since she does not like to kill other living things. She also likes to seek guidance from Cyclona when she is around, but finds that Cyclona is often hard to come by, so she uses her travels as a way to meditate about her feelings.