Great Tang: Fang Yiai Gets Chased and Beaten by His Father from the Start

A modern soul accidentally transmigrates into the body of Fang Yiai, son of Fang Xuanling, bringing a thousand years of wisdom to the Tang Dynasty. Though his father keeps beating him in frustration, convinced he is a disappointment, Fang Yiai repeatedly amazes everyone with his forward-thinking ideas. With his mother, Lu, doting on him, he uses modern knowledge to improve people's lives and reform the military and government, helping Li Shimin secure his rule and expand the empire. At court, he is praised by the empire's great ministers as a prodigy; in the martial world, the great clans tremble at his methods. Princesses and commandery princesses secretly give him their hearts. Amid clan rivalries and political scheming, Fang Yiai stirs up a storm with his unmatched ingenuity, writing his own legend in the Tang Dynasty.