Shen Yanchuan, a young man skilled in veterinary medicine, has a mother in poor health and relatives who refuse to repay the money they owe him. During a trip into the mountains, he saves an injured wolf king and unexpectedly forms a mystical pact with the mountain spirit, granting him the ability to understand the speech of beasts. From then on, Shen Yanchuan repeatedly rescues injured creatures throughout the forest and receives precious mountain delicacies from the animals in gratitude. Using his skills to treat patients and sell mountain produce, he improves his family's living conditions and opens a mountain goods business, helping villagers earn a stable income. He also builds a wildlife rescue station to protect the creatures of the mountains and finds sincere love along the way, as his life grows better and better.