Li Huaixi wakes up to find himself time-traveled into a foolish young man in an ancient mountain village. With bare walls and muddy yards, only a pigpen and the third uncle next door keep him company. Fortunately, he carries a supermarket with him. Settling down to live his life, he digs canals, nurtures new grains, burns lime, and builds brick kilns, step by step bringing prosperity to his days. Without annoying relatives or scheming, the family is neat and whole, and the villagers help each other, full of the warmth of ordinary life. As seasons change, the dilapidated little mountain village gradually turns into a brand-new market town, and even the magistrate of Pingyang County comes smilingly knocking on his door.