The heroine Liu Banxia combines modern anatomy with the ancient "qi-gaining technique" of traditional Chinese medicine. In the body of a person who is chronically poisoned, she can "see" the trajectory of the toxin and predict the time of deterioration. She entered the situation as a doctor and cleaned up the palace's internal affairs in exchange for the right to survive after her marriage. On the surface, it was to save the prince's life, but in reality, he was using the mansion as a chessboard to eradicate the enemies who destroyed the family one by one.
