Green Dragons are also sometimes called “earth” dragons. They usually live deep within caves, and have power over the earth. They are capable of launching boulders at high speeds, and can cause earthquakes by slamming down onto the ground.

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.

Tsuchigami's egg was stolen directly from the cave, so he is his owner's first original hatchling.

As a young hatchling he has been very playful and curious. He was taken care of by his elder adoptive brother Chikyuu Ryuu and lived in the same cave until he grew up. From his brother, Tsuchigami learned a lot about hunting and controlling the earth to let a earthquake occur. He has not used his power yet.

Also his name comes from Japanese and contains of the words "Tsuchi" (Earth) and "Kami" (God).