An apocalyptic powerhouse Cheng Yao time-travels through a book to become a substitute imperial princess, marrying Zhan Haoting, the God of War feared and framed by the emperor. On the way to confiscation and exile, relying on her portable space, medical skills, and apocalyptic survival abilities, she protects her husband and saves her family, fights toxic relatives, wins hearts, joins hands with Zhan Haoting to break through the court's pursuit and framing, and finally counterattacks the capital, overthrows the fatuous ruler, and side by side ascends to the throne of emperor and empress.