Yu Ying found herself in a revenge-themed novel without any romantic pairings, becoming the infamous yet powerless wicked ex-wife of the male protagonist. In the story, the male protagonist, who had lived as a noble son for twenty years, was suddenly informed that he was actually the son of a criminal, switched at birth. The true noble son, exiled due to the mix-up, returned after enduring great hardships. In revenge, he first crippled the male protagonist’s legs and then forced him to marry a daughter of another criminal. This daughter of a criminal, unable to endure hardship, took advantage of a general amnesty to escape with the last of their food supplies but died soon after falling during her escape. That’s when Yu Ying entered the scene. Familiar with the plot, she knew that all of the male protagonist’s relatives would not live long. She also knew that after the death of his relatives, the male protagonist would turn vengeful and dark, ultimately succeeding in his revenge and becoming a powerful court official. To survive, she had to rely on her knowledge of the plot and her expertise in traditional Chinese medicine, doing her utmost to save the male protagonist and his family. Crippled and branded as a criminal’s son, he was also forced to marry a malicious wife. During his time of despair, with no will to live, his wife, who had left and returned, seemed like a changed person. Optimistic and resilient, she brought a ray of hope to the lifeless home and healed his crippled legs. Gradually, she became his redemption, an indispensable presence he could not let go of.