Zhen Wu

Wu Zhen was a Tier 7 Alchemist with the Yan Alliance. When the Yan Alliance was expanding, he was one of the alchemists that was hired to assist in the expansion and growth of its forces by providing Medicinal Pills. Him, Liu Chang and their followers had become arrogant and believed they could do whatever they wanted in the alliance since Gu He was too weak of a leader to rein them in. (Source: Battle Through the Heavens Wiki)