Elder Miao is a Core Formation cultivator of the Six United Palaces.
History
In the animation, Elder Miao was betrayed and killed by Elder Gu.
In the novel, Chapter 382, Elder Miao and Elder Gu are collaborators. Both Miao and Gu are undercover agents of the Zenith Yin Island. The main difference in the novel is that Wu Chou eliminates the remaining Foundation Establishment cultivators who helped to slay the monster at sea. While Gu and Miao separated to pursue the two fleeing cultivators (Han Li and Qing Suanzi).
In the novel, Chapter 432, Elder Miao encounters Han Li at the Heavenvoid Hall.