Prodigies of the Ten Kingdoms

The rich second generation of the 21st century accidentally destroyed a stone sword while going on an adventure and rescued a mysterious old man. In order to repay his kindness, the old man sent the soul of the dying rich second generation to a strange ancient world. After his rebirth, he was not a commoner, not a beggar, and not a foolish son of a landlord, but the eldest son of a dignified marquis family. Let's see how a prince of the Hou family, who has no golden fingers and only a modern soul, writes his own story in these troubled times when ten countries coexist.