After some adventures, Cang Hai, who can't get along with the devil, returns to his hometown in the desolate west. Facing the loess and rolling hills everywhere, he digs wells and farms the land, and gradually transforms the wasteland where only loess but no green is seen into a paradise. A yellow dog, a donkey, a few melons, a few vegetable fields in front of the door, and a few acres of fruit trees planted at the foot of the mountain next to the house. There are fruits in all seasons and flowers every year. Tea is served every day, playing chess and reading books, Take it easy.