Shen Qingyuan, the legitimate daughter of the Hou family, mistrusted her husband in her previous life and was framed by her seemingly gentle cousin Gu Yanze and her concubine Shen Qinglian. Not only was the family wronged and their property taken away, but she died tragically in a cold palace and an abandoned hospital. It was only before she died that she saw the evil heart of the two. With endless hatred, she was reborn and returned to the age of fifteen. At that time, the family was still alive, the conspiracy had not been revealed, and all tragedies had not happened yet. In this life, Shen Qingyuan put away her innocence and worked step by step, vowing to make her enemies pay with blood.
In the process, she accidentally discovered that Xiao Jingyuan, the Marquis of Zhenbei, who had never paid much attention to her in her previous life, always appeared quietly when she was in danger: he blocked the fatal drink for her when she was poisoned at a banquet, killed the assassin for her when she was assassinated in the suburbs, and even calmly produced evidence to clear her innocence when she was framed for theft. As the contact deepened, Shen Qingyuan gradually lowered his guard, but also revealed an even more shocking secret - she was not the prince's biological child, but the eldest daughter of the British duke who was exchanged and lived among the people. On one side is the road to revenge, while on the other side is the mystery of his life experience. Under the protection of Xiao Jingyuan, Shen Qingyuan finally regains his identity and takes revenge amidst the turbulent house fights and court disputes, and also gains a deep love that goes both ways.