The four bodies of “Dragon Species,” the first one among them, was an existence that, on the earth, bore a child with a human. Strangely, the “Dragon Species” that mated with a human had the greater part of its power taken by the child. Since then, the act of “Dragon Species” bearing a child with humans seems to be regarded as a taboo prohibition. That “Dragon Species,” having lost its power, dispersed its body and accomplished incarnation on the earth, becoming the progenitor of the dragon race. From that, the “will bearing existences of the Holy Spirit of Nature” came to be called “Dragon Species.”