"Office building circulation cases" broke out in Lincang City, and Cen Ye, a newcomer to the secret service, took over the investigation. He found that the deceased had been in contact with the same batch of old documents before their death, and there was a strange energy remaining in their bodies. During the in-depth investigation, Cen Ye was attacked by members of the Guild Alliance, who could control the "Paper Man Gui". He barely managed to repel the enemy with the help of his family's "Suppression Fist", but unexpectedly learned that the case was related to the "bizarre disappearance" of his father ten years ago.
As the investigation progressed, Cen Ye solved the "Old Poster Devouring Case" and "Old Building Bell Murder Case" one after another. Each strange case pointed to the "loosening of the secret seal". In the process, he met the mysterious forensic doctor Su Ning, who has the special ability to decipher strange things. The two of them worked together to discover that all strange cases were set up by the Alliance to open the "Main Secret Seam", and his father disappeared to prevent this. When Cen Ye found the entrance to the main slit, the leader of the sly alliance was already waiting here, and a sly and martial showdown related to the safety of Lincang City began.
