This novel tells the story of the young Di Renjie solving a case. Because the TV series shows Di Renjie as an adult, I couldn't help but want to write about how Di Renjie solved the case as a boy. There is a difference between the story and history. This point must be mentioned in the first place. There are many people who like history. They will inevitably find that the novel is not consistent with history. Please don't be too serious, because when I wrote it, I didn't want it to be completely consistent with history. Thank you!