The protagonist Li Dongnan travels back to an ancient cold and barren year, becoming a lazy and good-for-nothing ruffian. At the start, he is given a wife and a daughter, and there is not a single grain of rice in the vat. Just as he is feeling emotional, the system's voice rings out! Since he has already come, what else can he do? He can only rely on his bare hands to solve food and clothing, and use his double fists to break through the bare walls of his home! Hunting, fishing, catching wild boars, inventing brick beds, everything is available!