The protagonist, Yan Beichen, is a loser who is a zoologist whose soul can't contract with spiritual beasts. Bound to the "Beast God Heritage System", it can communicate with spiritual beasts and help them evolve. The little local dog was raised by him to become a howling moon wolf, and the little loach transformed into an ancient dragon. He led an army of beasts across the world of cultivation and became the beast god master that everyone respected.
