When Water Dragons mature, they lose the ability to survive on land, entering the water permanently. They are adept swimmers and eat whatever fish are in the lake they live in. They tend to inhabit the same lake for their entire lives, although a few live in the ocean and swim all over the world.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons 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. In Galsreim, dragons and humans coexist peacefully.

Heart is a member of a group of Water Dragons who live in a large lake. He is rather handsome in Water Dragon standards, with a slim body and long, slender whiskers. Heart is very friendly with the other members, swirling around them whenever they interact with him and speaking gently. He doesn't like to be alone and is always hanging out around others.

Heart has a tune that he sings like the rest of the members of his pod. His songs are low and melodious, with a soft feel to it. He has a habit of upping the pitch randomly, breaking the rhythm for a few seconds with screeching sound.

While Heart is nice to the other Water Dragons, they sometimes try to avoid him. This is because the male is very touchy-feely, with a habit of twirling his coils around his friends and nuzzling them. He has been yelled at about his actions, but Heart doesn't seem to understand why it is wrong. All he wants is to be close to his friends, not wanting them to leave and never come back.