In the previous life, Liu Xi was the "Nightingale" lurking beside Xue Zheng, but was betrayed by a traitor and exposed her identity. Xue Zheng, who was decisive in killing, actually blocked a fatal blow for her in the hail of bullets, and the two died embracing each other in the flames of Jinling City's destruction. When she opened her eyes again, she went back to her first day as Secretary Xue Zheng. In this life, she carries the memory of her past life with her, vowing to find out the evildoer, complete the unfinished task, and protect the duplicitous man. But she gradually discovered that Commander Xue, who held a heavy army and was as cold as ice, always looked at her with indescribable emotions in his eyes. He tested her identity again and again, and sacrificed his life to protect her when she was in danger. In the war of troubled times, two people wearing masks doubted and tested each other. When the truth surfaced, they were shocked to realize that she was not the only one rushing to this life-or-death reunion with regrets and obsessions from her previous life.
