Aria Thorne, General of the Northern Garrison, returns to the capital. The Empress Dowager decrees she marry the sickly Ninth Prince, Julian Stanton. This marriage is actually the union of two powerhouses—Aria Thorne is the Master of the Blood Pavilion and 'Dr. Argent', while Julian Stanton hides his true strength. They evolve from an alliance of convenience to relying on each other. Together, they overthrow the Empress Dowager and the Crown Prince, ultimately retreating to a secluded life.