On the wedding day when the candles are burning brightly, what Shen Ruojin, a daughter-in-law, is waiting for is not the arrival of her husband-to-be Pei Jing, but the news that he has eloped with his concubine. Facing the whispers of the guests in the hall, this woman who had practiced martial arts since childhood and had ambitions in all directions did not change her expression. She raised her hand and pointed at Qin Lang, who was leaning slopingly in the crowd: "Pei Jing abandoned me, so today Qin Lang will be my husband, Shen Ruojin." Qin Lang, the demon king who was shunned by everyone in the capital, and Pei Jing's brother-in-law. Pei Jing turned back after hearing this, with eyes full of sarcasm: "Shen Ruojin, are you marrying a dandy just to vent your anger? Just for the sake of face, you will regret it in the future!" However, no one knew that behind this marriage was Shen Ruojin's rebirth. In her previous life, because she trusted Pei Jing, not only was her family destroyed, she also died unjustly. When she was reborn on her wedding day, she took the memories of her past life with her and vowed to change her destiny. Her marriage to Qin Lang was originally a step in her revenge plan, and she agreed to divorce after one year. Unexpectedly, after the marriage, this seemingly dandy husband showed an unknown side: when she was made things difficult for her, he overturned the banquet; when she went on an expedition to the border, he secretly planned food and fodder; when she was assassinated, he destroyed the enemy camp. When Shen Ruojin reminded Qin Lang of the promise of "one year of peace and separation", he put the military talisman and the jade seal into her hands: "Leave with what? I will conquer the world for you, and I will only belong to you in this life." As the intrigues in the court and the border wars intertwined, Shen Ruojin gradually discovered that Qin Lang's true identity was actually an orphan from the previous dynasty, and there was a bigger conspiracy hidden behind Pei Jing's elopement - a subversion plan against the imperial power. Faced with the social discipline that women are not allowed to participate in politics, Shen Ruojin relies on her past life memories to meet Qin Lang
