During a year of famine, nineteen-year-old Cheng Xiangyang is reborn on the day his mother is humiliated. He awakens the ability to possess all kinds of beasts, allowing him to wield the powers of birds and ferocious animals in human form. He ventures into the mountains to protect his family, helping his mother reclaim her livelihood, money, power, and dignity. He also helps his father break free from blind filial obedience, enables his mother to establish a processing workshop with her fur-working skills, and makes the biased grandparents, greedy uncle and aunt, and tyrants who dominate the mountain produce trade pay for their deeds.