Cleaner Chen Duba picked up a blood-stained school uniform, and his name was added to the city's wanted list the next day. Interpol Zhou Yan was ordered to pursue him, but found that the blood stains pointed to the girl's disappearance that had been covered up three years ago. Aunt Zhao handed over a button with a pinhole, Lin Xun hid the tampered DNA report, and the SD card Wang Sigou vomited out before his death contained an organ trading chain. When Chen Muba found the second blood-stained school uniform in the scrapyard, he finally understood that the uniforms of every school in this city were sacrifices.
