Caelus Rhodes transmigrates into the Xia Dynasty's Sixth Prince. Framed by the Fifth Prince for 'raping the Imperial Sister-in-Law,' he proves innocence. Using modern thinking, he recruits Yuri Gale and Tristan Nash, takes Quinn casino, controls salt profits, and allies with Vance family. He thwarts princes' conspiracies, pacifies Hedong bandits, brings down Second Prince, and becomes Crown Prince with female general Rhiannon Fairfax.