She was originally the eldest daughter of the Su family. She pretended to be a gentle lady for fifteen years, but was actually proficient in arithmetic, business, riding and archery (taught secretly by her mother). After the family fell, she showed her sharpness, and her personality is strong on the outside but soft on the inside - externally she is a ruthless mistress who "dare to carry a coffin to force the palace", internally she is the eldest sister who protects her younger siblings.
