Jiang Yin (the male protagonist), who comes from a declining family, is talented but suppressed. He met A Li (the female protagonist) who has a mysterious bloodline at a young age. A Li has the power of stargazing and prophecy, but his body is weak due to leaking secrets. Jiang Yin took part in the imperial examination in order to change his destiny, and A Li secretly worked hard to divine the test questions and career fortunes for him, helping him win three yuan in a row. However, in order to check and balance the court, the emperor forcibly betrothed the arrogant and domineering eldest princess to Jiang Yin. For the sake of family rejuvenation and greater ambition for power, Jiang Yin reluctantly accepted the order and became the consort. He broke his marriage contract with A Li and put A Li under house arrest in a secret room in the mansion. It was called protection but was actually a secret possession.
