Shen Yuwei, a doctor of modern forensic toxicology, accidentally transformed into a cannon fodder female supporting role in a palace battle novel to contrast her life with the heroine. The original owner was a beautiful lady who entered the palace together with the time-traveling heroine. Because her family background and appearance were not as good as the heroine's, she was used as a stepping stone to set off the heroine's glory. She was eventually framed by the heroine's admirers and died of poisoning in the cold palace.
Shen Yuwei traveled through time just as the original owner was poisoned and dying. Relying on toxicology knowledge that was ahead of her time, she not only unlocked her own strange poison, but also saw clearly her fate as "cannon fodder in the control group". She doesn't believe in fate, let alone admit defeat. In this deep palace, there is no golden finger, the only weapon is the modern scientific knowledge in her mind.
She disguised the knowledge of modern chemistry, botany, and pathology as the lost technique of "ancient poison scripture" and worked step by step. When the time-travelling heroine uses Tang poetry and Song lyrics to win the Sacred Heart, she is studying the hallucinogenic ingredients of spices in the palace; when the heroine uses modern marketing concepts to please the Queen Mother, she is analyzing the interdependence of the palace meals; when the heroine wins the emperor's admiration with the halo of the protagonist, she uses the exquisite epidemic prevention layout during a "smallpox" crisis to win real authority and awe.
