Chi Sha Du Fei Buhao Re

She was the daughter of the Prime Minister, known for being silly and spoiled. After her engagement was broken off, she rashly killed herself.
Mu Qingge transmigrated into her dead body from the 21st century. Relying on her mastery of medicines and poisons, she caused a great disturbance in the Imperial Court.

"You dare to call me a fool? Let me show you what real smarts and true beauty are!"

Note: Includes 3 extra chapters.

(Source: Tencent, translated)