In the Dayin Dynasty, the powerful Zhenbei King Xiao Jue was cold-blooded and ruthless, with great military exploits. He was the sharpest knife in the emperor's hand. Shen Zhiyi, the most noble daughter in the capital, was both talented and beautiful. She was once the perfect candidate for the crown prince, but due to the sudden loss of power in her family, she fell from the clouds. A piece of paper conferring marriage binds two people who have no intersection with each other. He married her for the remaining power and secrets behind her; she married him to find the only chance for herself and her family in a desperate situation. This is a marriage that began with calculations and interests, but in the whirlpool of intrigues and the temptation of the dark night, they gradually lost their hearts and fell in love. When the mysteries of the past are revealed, when the country and their loved ones face choices, can they join hands in a beautiful world in the thrilling struggle for imperial power?
