Liu Ruyan, the concubine of the General's Mansion, struggled to survive under the pressure of her aunt and sister. She looks cowardly, but she secretly plans something. She used her medical skills to treat the old man in the mansion, used her economics knowledge to help her father solve the military pay problem, and even used modern management methods to straighten out the chaotic accounts of the mansion. When the mother-in-law of the family united with outsiders to put her to death, she revealed a trump card that no one knew - she was already a female military advisor appointed by the emperor, and she had earned all her fame by herself.
