The scene shifts to a school in the middle of the night, where the principal and his students are waiting for hui ma. He tells the students that he was present on the night of the "yuzheng incident" and that he remembers seeing them playing with lighters. He also tells them that there was an incident at the same school where a student was severely burned in an arson, and that the suspect applied to withdraw from the school, but the school refused to do so. He concludes that the connection between the two cases is that the lighter you were playing with was the same one used in the first case.