Power over the World: from Concubine to Emperor's Master

Programmer Qin Feng died unexpectedly and was reborn as a concubine of the Minister of Rites of the Zhou Dynasty. In this era where concubines were clearly distinguished and the powerful were rampant, his status as a concubine made him suffer bullying. However, he accidentally activated the "Strongest Empire System" and gained abilities such as photographic memory, medical skills, and martial arts. From then on, he started a magnificent counterattack.