The Tang Dynasty's Son-in-Law

Chang Fan, an engineering student who had just graduated in the 21st century, found a job in the provincial capital. While returning to his hometown to attend a Chen clan ancestral sacrifice, a gas cylinder exploded, and he accidentally transmigrated to the Tang dynasty, in the fourth year of Zhengxian. He became the only son of a landowning family bearing the same surname in the Great Tang. To his dismay, the original owner was a lazy wastrel who neglected his studies... In the Zhenguan era, the Great Tang was a nation with every industry waiting to be developed. Using the modern knowledge he'd accumulated over the years, Chang Fan began an extraordinary new life. ...Many years later, when Chang Fan slowly awoke in a hospital bed at a traditional Chinese medicine hospital...