Zhang Wudao was born with Yin evil spirit, and was frozen in a coffin by his master for more than a hundred years. When he was looking for something to restrain the blazing sun, he got a lifelike ancient corpse and a parchment to practice Yin evil spirit, so he started practicing with the ancient corpse. Soon after passing by the fellow practitioners, the ancient corpse was resurrected, and soon an organization was established to imitate the Yanyu Tower.
