The Third Class Earth Spirit is a minor deity who protects nature. He lives in Megumi Morisato's apartment and watches over her in the form of a rat. In his true form, the Third Class Earth Spirit appears to be a man with ghostly pale skin, wild gray hair, and blue markings on his face. The spirit is initially portrayed as being unfriendly and vengeful, having done his best to frighten all possible tenants that would move into the apartment within his resting space. He would use his powers to chase away humans out of personal frustration, having grown angry at the mortals for causing a break in his Earth Power Line, this issue causing him to lose the majority of his powers. After Belldandy performs the necessary repairs, the Earth Spirit becomes much more accommodating and agrees to instead protect the inhabitants of the apartment, in this case, Keiichi's sister Megumi.