Mr. Wei Fangxiu, the yin-yang man of Wei House in Yongning Lane, received a wordless invitation sealed in blood at midnight. The next day, people in the entire alley died suddenly and mysteriously, and the police autopsy report was full of "death from natural causes." Only Wei Fangxiu knew that this was an invitation to a strange game from the Underworld's Records Secretary - there were only one rule, and the puzzle must be solved according to the clues recorded in the case file, otherwise all players would be devoured. The criminal police captain Huo Yunzheng led the technical team to figure out the social relations of the deceased, but he did not know that the real murderer was hidden in the gaps of the code words. Wei Fangxiu pulled out the soul-calming wooden hairpin, touched the case file with his incomplete soul, and deciphered the game key from the secret language of the world. While Huo Yunzheng was still analyzing the surveillance video, Wei Fangxiu had already locked onto the source of the supernatural—each code pointed to a name that must be sacrificed. But the iron rule of weird games is: every time a round is cracked, the player will lose a soul. How many more games can Wei Fangxiu survive? And those new case files that keep popping up seem to be selecting a specific person...