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.

Thunder dragons are the masters of electricity. Their wings gather energy as they soar through the clouds, and when they clap their wings together they can create devastating arcs of lightning. They can stay airborne nearly indefinitely, landing only to sleep and breed; they catch their prey from the air and take moisture from the clouds. A thunder dragon’s roar is considered to be an omen of misfortune.

Hime is the "Princess" in the group, always acting with strong facade in front of the others. Underneath, she is actually quite a nice dragon, a bit shy even, especially when face to face with Raikou who she is secretly nursing a crush over which ironically, everyone else in the group knows about except Raikou himself. During battle, she is literally the "jack of all trade" as she can attack by summoning thunder bolts from the sky to destroy her enemies from above for middle range battle or coating her wings with thunder, turning it into razor-sharp blade for close quarter combat.