Rule Escape: Bad Players Never Die According to the Routine

My sister disappeared out of thin air in the laboratory of No. 7 Middle School. The whole world forgot about her, and only I remembered her. A note dragged me into a copy of the rules controlled by broadcasting. Others are trembling in horror when talking about ghost stories, but I find that as long as I don't follow the rules, the system can't do anything to me? "It seems that this year's on-duty students are a little smarter than the previous ones." What is the secret behind this rule?