Lu Tong went to the mountains to study medicine for seven years. When she returned home, she discovered that things had changed. Her older sister was harmed by others and died, Her older brother was put in jail full of injustices, Her father went to the capital to voice his grievances, but encountered a flood along the way, Her mother went crazy overnight and died in a fire. Lu Tong packed up her medicine box and went to fight in Jingzhou. Pay back your debts with coin, pay back your mu*ders with your life! If there is no judge, I will be King Yan! *** One after another, the noble families in the capital encountered troubles. The commander of the Imperial Guard, Pei Yunying, secretly investigated the matter. A female doctor at Renxin Medical Center became his main suspect. However… Before he could find any evidence, she took action against him.