In the last life, Shen Zhiyi entered the palace as a chess piece for his sister-in-law, and was trapped in Xiao Che's prison cage. At that time, Xiao Che ascended the throne for the first time and was under the control of Duke Zhen, who had a large number of soldiers. The Shen family had evidence of Duke Zhen's rebellion, which made it a must-win point. In order to protect the core members of the Shen family, Xiao Che had to pretend to order a "house raid" and secretly transfer the members, but failed to protect Shen Zhiyi, who was regarded as a threat by the Duke of Zhen. In the end, she drank poison and died under the cold moon, not knowing his reasons until her death.
After being reborn as a child, Shen Zhiyi was filled with hatred and vowed to stay away from the court and protect his family. However, under the moon while on his way to avoid disaster, he bumped into Xiao Che, a young man who was investigating the case incognito. He rescued her and fell in love with her at first sight. Shen Zhiyi pretended to cater to her and waited for an opportunity to retaliate, but she was shaken by his sincerity and responsibility in life and death.
After Xiao Che ascended the throne, he left her in the palace again. When Shen Zhiyi was desperate, she unexpectedly learned that he had also returned from rebirth. It turns out that it was her trusted aunt and sweetheart who leaked the evidence of the Shen family and colluded with the Duke of Zhen. The misunderstanding between the two lives was finally resolved, and they joined hands to avenge the mastermind behind the scenes and make up for the regrets in their previous lives.