Li Youcai, an unknown criminal expert in the market, was involved in the officialdom due to a strange case. With his business wisdom and humor, he solved one bizarre case after another, but gradually discovered that there was a struggle between high-level officials in the imperial court behind the case. In the test of growth and destiny, he met his partner Wang DaDa and the medical girl Su Qianqian. He became friends with the policeman Zhao Duo and became friends with him. Master Du, who is also a teacher and a friend, led his growth. In the meantime, undercurrents are surging, the villain Grand Master He An is pressing closer, and justice and wisdom continue to collide in the game between the common people and the powerful. After four volumes of climactic confrontations of cases, emotions, and power, the protagonist resolves the crisis with wit, finally defeats the grand master's shocking conspiracy, protects the people, and laughs at all life's circumstances.
