Yan Ruyu, a top agent in the apocalyptic end times, accidentally time-travels and becomes an bullied illegitimate daughter in the Ministry of War's junior vice minister's mansion of the Great Qian Dynasty, forced to marry Prince Zhennan Huo Changhe in place of her legitimate elder sister, whose whole family is about to be executed. To repay the life-saving grace of the Huo family's ancestors, she starts by emptying the wealth treasuries of both the Prince's Mansion and the Yan Mansion, and embarks on the northwest road with the exile convoy. Along the way, with her iron-fisted methods, she tears apart vicious officials, outwits green tea villains, and fiercely protects the Huo family's main household. Meanwhile, the God of War Huo Changhe, who faked his death to escape, transforms into a bandit chief to protect her in secret. In a tug-of-war of hidden identities and life-and-death clashes, the two join forces strongly, vowing to uncover the dark secrets of the imperial court and carve out a bloody path in a troubled world.