The Strongest Dragon King Medical Son-in-Law

He was once the Young Temple Master of the Medicine God Hall—a peerless powerhouse who commanded the wind and clouds!
Three years ago, he was grievously ambushed by eighteen top-tier experts, suffered a brain injury, and became an idiot!
Three years later, the Medicine God returned! He held dominion over life and death, controlling Yin and Yang!
Wife of a shared lifetime, I wish to treat you with tenderness my whole life!
To my past enemies, I desire to unsheathe my sword and shred your nets, annihilating your entire clan!