Ji Chang'an is the legitimate daughter of the richest family in the imperial capital, the Ji family. In her past life, following her parents' orders, she married Wen Yesong, but was plotted against by him, ending up with her family destroyed and her property usurped. Wen Yesong also had a pair of children outside, bought off the servants of the Ji mansion, and embezzled the Ji family fortune. The black snake guarded by generations of the Ji family always accompanied Ji Chang'an, but was killed by the Wen family, and Ji Chang'an died in grief and resentment. Opening her eyes again, she returned to the day of her first meeting with the Snake Lord. At this time, the tragedy had not happened, and the black snake was safe in the Ji family treasury. Ji Chang'an swore that in this life she would protect the Snake Lord, her father, and the Ji family.