Liang Xiaoxiao, a cutting-edge lawyer at the top law firm "Jincheng Law Firm", uses the secret past of his father's injustice due to judicial injustice to break through the male-dominated legal world step by step. She used her keen insight to dismantle difficult cases such as "Celebrity Tax Evasion Case" and "Listed Company Financial Fraud Case", but she was deeply involved in factional struggles in the workplace - senior partner Zhao Liqun regarded her as an obstacle to seizing power. At the same time, lawyer Chen Mo not only competed with her for the source of the case, but also secretly had complicated feelings. When she takes over the "retrial of old cases" that can clear her father's grievances, she not only has to fight against the pressure of powerful forces, but also faces the ethical dilemma of "does defending the 'bad guy' deviate from justice?" From a newcomer who stayed up late to revise legal documents, to an ace who can turn the tide in the Supreme Court trial, Liang Xiaoxiao, in the balance between winning the case and conscience, shattered the prejudice that "women are not suitable for handling big cases", and finally took off her own "Crown of Thorns", and pushed the law firm to establish a fairer promotion mechanism, becoming the person who truly defines the "Queen of Justice".