Koukyuu no Renkinjutsuhi: Aku no Hana wa Ougon no Koi wo Yumemiru

Is she a villainous woman, or something more? Facing perilous situations with the use of alchemy, a suspense story set in the Chinese imperial harem.

Byakuren (Bai Lian) is the Ryuu (Liu) family's eldest daughter. Feared by even the maids for her arrogant and cold demeanor, rumors of her bullying her half-sister Mokuran drift about the household. However, everything was an act to protect Mokuran. Though Byakuren enters into the inner palace as a concubine candidate and begins to move towards fulfilling her goal, the machinations of those around her immediately break apart Byakuren's written scenarios one after the other...

(Source: Kadokawa, translated)