Qin Ming's assistant resigned because of his unbearable and quirky temper. Li Dabao of the Department of Mark Inspection was ordered to join the working group. At the beginning, Qin doesn't trust the girl but he found later he found she has very good reasoning and observation capabilities, and have very sensitive sense of smell. The critical Qin decide to have her on the board. Later on, Qin along with his detective friend Tai Po and assistant Lin Tao uncovered a variety of bizarre cases.