The story takes place in a remote mountain village called "Xiaxi Village". The land is sparsely populated and there are nine droughts in ten years. The villagers live in poverty here. The core rule is "land recognition": an ancient ritual that connects to the earth through the blood of the heart and obtains control and nourishment of part of the land. This power can accelerate crop growth and improve the soil, but each use will consume the user's energy and even shorten their lifespan. The theme of protection and sacrifice runs throughout. Real construction is not to change things out of thin air, but to exchange blood, sweat and vitality.