Time travel + medieval world + weak golden finger + lost civilization + farming + competing in the world. The protagonist travels to a barbaric world similar to the Middle Ages, and the only way to rely on it is to dig out the relics of the "lost civilization" scattered on the earth. These ownerless high-tech creations are incredibly powerful and are the key to survival and strength - but after all, they are ownerless and anyone can use them. The only difference is how to understand and use them. The protagonist has no system, and only relies on a modern mind and a body that seems to have a subtle connection with this world, and starts farming from scratch with difficulty. He must race against time to recover, study and use these relics to arm himself and establish a foundation amidst the dangers. As his power grows, the relics of the old world he picked up in the past will eventually become his capital to compete in the world, and he will start a life-and-death war with all the forces that also covet the ancient power.
