Lin Maoshan was once a renowned mushroom-picking expert known as "Mountain Eye" in Qingshigou. After coming to the city to toil for his son's family for five years, he was despised and had his birthday mushroom soup dumped by his daughter-in-law, returning to his hometown with a chilled heart. Back in his native soil, he established himself through his skill in recognizing mountains and identifying mushrooms, helped impoverished fellow villagers set rules for mountain picking, stopped indiscriminate gathering and digging, rescued relatives who mistakenly entered the deep mountains and encountered danger, guarded the wild livelihood and original intention, and rediscovered his own life amidst the green mountains and clear waters.