The narrator tells us that the switch demon has sent a message to all the students at the school, inviting them to come to the school on the evening of the 20th to confess their sin and to be punished if they fail to show up. The narrator says that the message is from the same person who sent the previous night's creepy clicking sound, and that the other students are all graduates of the same class. He says that he thinks the message must be a prank, because all of the students who have received it are graduates of that class.