From Disowned General's Son to Regent of the Realm

In the court and power struggles of a fictional Northern Song dynasty, Zhang Tai'an transmigrates into the body of a young scholar known for his prodigious talent but prone to nervousness during exams. With the experience of two lifetimes and a head full of literary knowledge, he is ambitious and certain that he is destined to be the protagonist of a power fantasy novel. He plans to pass the imperial exams, rise swiftly through the ranks, have a few confidantes, and eventually retire as Prime Minister. However, he first becomes a son-in-law in a general's family and gets embroiled in a murder case that draws him into a scheme by a regional governor against military officials. Before he can even take the exams, he ends up with a minor official post. Fine, he thinks, he'll be an official and take the exams at the same time. From the border to the western capital, and from there to Kaifeng, Zhang Tai'an's reputation grows even before he sits for the exams, and his official rank climbs higher and higher. When he finally merges the cultures of his two lives and wins the top scholar title, things take a turn. He certainly intends to become Prime Minister, but Zhang Tai'an's version of the role is... "I have a word for Your Majesty: I can do what Yi Yin and Huo Guang did!" — Description from novelcodex.org