Kusuriya no Hitorigoto  

The Apothecary Diaries, 薬屋のひとりごと, สืบคดีปริศนา หมอยาตำรับโคมแดง

In the East lies a land ruled by an emperor with his consorts and serving women residing in a grand complex known as the hougong. Maomao, a girl from a modest town raised by her apothecary father, never imagined she'd be part of this palace life until she was kidnapped and sold into service there. Despite appearing ordinary, Maomao possesses a sharp mind, quick wit, and extensive knowledge of medicine. Her secret is revealed when the head eunuch, Jinshi, recognizes her abilities and makes her a lady-in-waiting to the emperor's favorite consort, tasked with tasting the lady's food for poison. As she learns more about palace life, Maomao discovers not all is as it seems. Will she be able to lead a peaceful existence or will her powers of deduction and insatiable curiosity bring her further adventures and dangers?

Kusuriya no Hitorigoto has been published digitally in English as The Apothecary Diaries by J-Novel Club since February 14, 2021.