In her previous life, she was an attending physician in the emergency department of a tertiary-level hospital. After she died suddenly due to continuous overtime work to rescue patients, Chuan Shu became the unpopular little princess of Prince Jing of the Dajing Dynasty. The original owner was despised by everyone in the palace because of his poor medical skills and attempted to poison the prince. Even his natal family, the Su family, regarded him as a shame. After inheriting the identity of the original owner, the heroine is bound to the "Ji Shi Poison Medicine System". The system comes with a huge medical library covering ancient and modern times, both at home and abroad, ranging from poisonology classics to rare medicinal materials and advanced medical equipment blueprints. However, the system functions need to be gradually unlocked by completing tasks such as "assisting Prince Jing to seize the throne" and "rescuing key figures".
The benevolence of a doctor will help innocent people, but he will show no mercy to villains. In the early stage, he wanted to gain a foothold in the palace and avoid repeating the mistake of the original owner who was tortured to death; in the middle stage, he discovered that although Prince Jing was indifferent on the surface, he secretly protected the people, and gradually recognized his philosophy of governing the country, and was determined to help him seize the heir to realize the ideal of "healing the world"; at the same time, he also wanted to find out whether there was a deeper conspiracy behind the death of the original owner, and seek justice for the original owner.