The Immortal Dragon Son-in-Law

Lin Rui, a healer who has lived for over two thousand years, is revered as a peerless Medicine Immortal. A century-old calamity leaves him in a weakened state, and he becomes a live-in son-in-law of the Chen family. To protect his wife, the Medicine Immortal returns to the world, turns the tables on his powerful foes, and sends the city into turmoil.