Lu Chuan was once a lazy, hard-drinking wastrel who drove his wife, Bai Ling, to gather medicinal herbs on the mountain in the pouring rain, nearly costing her life in a flash flood. After being reborn, he returns to the morning that changed his fate. He rushes into the flood and rescues his wife, then inherits the legacy of the Mountain God's bones at the bottom of Dragon Saliva Pool, gaining the ability to identify medicinal herbs and command the wind to protect the mountain. He earns money by gathering herbs and leases an abandoned forest farm to grow medicinal plants. He leads the villagers in establishing a cooperative, turning barren hills into a treasure trove of medicinal herbs. His younger brother comes to his senses and becomes a forest ranger, while his wife stands tall and becomes his unwavering support. When their daughter reaches her first month, he makes a solemn vow to the green mountains: I will protect every plant, every blade of grass, every drop of water, and every patch of soil on this mountain. He will protect both his family and this land.