Yellow dragon of the Center called Huang Long in China which rules over the center and represents earth element ,changing of seasons . He was once a hornless dragon who emerged from the River Luo and gave the Emperor Fu Xi with the elements of writing. Its waking, sleeping and breathing determine day and night, season and weather. He does not appear in Japanese Mythology however Kouryu dragon who represents Japanese emperor considered his Japanese counterpart, and is said to be the son of the universe with divine protection of the gods.