The Wild Crown Prince

The male protagonist, Wei Chong, originally transmigrates to the Great Yan dynasty as a prince, only to end up in a death-row prison. After fighting through countless hardships and searching high and low, he finally reunites with the reigning emperor, his father. But for various reasons, his identity as the emperor's eldest son cannot be made public. Instead, he lives as a commoner and gang leader, helping his father put the court in order and eliminate the empress's faction and corrupt officials. After reclaiming his place in the family, he repeatedly leads armies in his father's stead, quelling rebellions at home and repelling powerful enemies abroad. Beloved by the people and renowned throughout the land, he eventually follows the example of the Duke of Zhou, helping his young brother ascend the throne and ushering in a prosperous dynasty with a strong nation and wealthy people. The protagonist also fulfills his life's purpose across his two lives.