The heroine Ouyang Lanxue traveled through time and became a good-for-nothing policeman in Wujiang County. The original heroine fell into the water and woke up in a coma. On the first day, an unknown female body was found in an abandoned well in the backyard of the county government office (a case involving copper coins). She used system assistance and modern criminal investigation knowledge to find the real culprit - the owner of the embroidery shop amidst everyone's suspicion. This resulted in the initial approval of the county magistrate and county captain. Immediately following the second case, the "Elixir Murder Case", a wealthy businessman died suddenly, the heroine was found to be suffering from mercury poisoning, and her nephew who was seeking wealth and murder was found out. The two cases were solved, and the heroine gained a foothold in the county government office. At the same time, she had a vague feeling that someone was secretly observing her.
