The Princess Chose Only Me

Leo and Grace meet on the night she has been drugged. Leo has come through time into the Great Qian, and Grace is the Grand Princess, and the encounter ties the two of them together. The Emperor is seriously ill at the time, and Grace's uncle Rex is pushing the court into a marriage alliance with the Northland. Grace takes Leo as her prince consort, which shields her and the court both, and sends him to the Six Gates Bureau as a trainee constable. On the wedding night Leo activates the Empress Support System and his strength starts to climb. He catches a Northland spy, which makes his name in the capital, and he meets Mandy, the Princess of Changning, who commands the Imperial Guards in North City. He then digs up Prime Minister Ryan's dealings with the enemy, sets up a public wager, and uses it to lay Ryan's corruption open. Ryan falls, his ill-gotten property is seized, and Leo is given the title of Marquis Protector. After that he breaks up the Northland's marriage scheme, leads the Vanguard to put down Rex's rebellion, and is named Supreme Commander of the armies. His cultivation breaks through into the Semi-divine Realm, and he takes a sword technique called Sword Storm out against the Northland army.