The Apothecary Diaries

Maomao, a young girl who works as an apothecary in the red-light district, is kidnapped and sold to the Imperial Palace as a servant. However, she still retains her curious and eccentric personality and plans to work there until her years of servitude are over, without drawing the attention of anyone.

That is until she captures the eye of a young noble man. Now forced into becoming a food tester for one of the emperors concubines. She is now forced to play the game of courts, in order to survive.

PS: this is not my story
The original book has been translated and was written by Natsu Hyuga