The heroine is a modern surgeon → She travels through time and becomes a concubine in the Prime Minister's Palace. She is good at medicine and toxicology, and resists feudal ethics.
The male protagonist is the king and regent of Zhenbei. He looks violent and sinister, but he is actually an orphan from the previous dynasty and is responsible for restoring the country.
Modern values vs. Ancient machinations, the confrontation between family and country caused by the male protagonist's dual identity, and the ethical dilemma of the golden finger of the medical system
