Is No One in This Supernatural World Normal?

Xu Ning thought he'd be the hero who saves the world—until he realized he's the only sane person left in it. In a realm teeming with supernatural beings, he's the lone cultivator among a cast of complete lunatics. Every ally is unhinged, every enemy is deranged, and the 'normal guy' suddenly finds himself the oddball in a world gone mad. Can he survive when sanity is the rarest superpower of all?