Library

This red volume contains numerous mysterious cases. (Except for the use of real place names, the plot and characters in this story are all fictitious, please do not take it personally!)

An excerpt from "Old Detective's Notebook". The timeline is before the finale, after Li Yongqiu was transferred to the criminal police team.

The daylight in winter in the north is particularly precious, and now it is completely dark.

War is raging, there is conspiracy and betrayal, but also rebirth and hope.