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.

Tofucake Vs The World lives in a secluded lake that used to be far removed from any human settlements or dragon caves. This solitude has made him a little eccentric, but also tame; at least in the sense that he didn't hide when the first humans started appearing in the area. He simply didn't expect any danger because he knew none. And the humans were intimidated by this seemingly fearless creature, but soon found his weakness: when offered either the whole world or tofucake, he always chose the food.