IPID Tax Enforcement Agency

As the new century passed into the 1920s, tax crimes became increasingly rampant, and the powerful IPID Privileged Tax Inspection Agency was established. A carefully arranged "selection" made Jie Han, a trainee inspector from the police force, one of them. As the investigation progressed, Jie Han was shocked to realize that he had already fallen into a strange and chaotic situation. The shadows of the past reappeared, and detailed clues gradually revealed a shocking conspiracy. The building concealed above the truth began to fall apart, and a struggle concerning advancement and retreat began...