brief introduction:

As a professional police officer, this world's own self is simply a scholar!,Out of Japan's 220,000 police officers, only 500 are professional investigators. This comparison alone shows the difficulty of passing such an exam.,According to Tang Ze's own memory, in his original world, his grandmother was a Japanese woman who ultimately married into her husband's family. Unexpectedly, in this world, it was his grandfather who left it behind.。

• Latest chapter： Chapter 2 This era is a bit difficult