Cui Yan, a modern social animal, accidentally traveled through time and became the eldest son of the Cui family in Qinghe in the mid-Tang Dynasty. Living in the undercurrent of the transition of imperial power during the Zhenyuan period, he used modern wisdom to dismantle the intrigues of the court, used his literary character to connect the allies of the aristocratic families, and protected the family and redeemed the beautiful woman in the game of palace walls and border wars. From being ignorant and adapting to taking charge of the situation, watch the prince write his own legend in the prosperous Tang Dynasty.