Yan Li went crazy because Bai Yao died.
He made a deal with the devil because the devil said he could lead him to Bai Yao.
The devil discovered many secrets. Because the secrets were exposed, people around him died, were injured, and became disabled...
Yan Li finally found his lover, but found that his lover had turned into an angel... He didn't remember him, and he wanted to kill him because he was associated with the devil...