Mother always said to Qinran: "Your stepfather is from a famous family, your eldest brother is a genius, and your sister is a top student in her high school. You, a country bumpkin, don't embarrass them." Everyone with status in the capital received a warning from Mr. Juan of the Cheng family: "Mr. Juan's wife is from the countryside and doesn't understand our current situation, and she has a bad temper. In short, everyone should be extra patient." Until one day, when Master Juan was investigating a certain big boss, his men fell into a confused silence while looking at one of the waistcoats of his sister-in-law who claimed to know nothing…