On a certain day of a certain month of a certain year, Liang Che from City B received an admission notice from S University. In addition to a lot of precautions and other things that all universities would send, there was also a dark gold booklet with two school regulations in large cursive letters on the cover. The strange thing is that it is blank inside, and the paper is rough and looks very old. Liang Che was surprised and didn't think much about it. He packed his things and went to S University on time. The moment she entered the school gate, the booklet quietly changed, and the first line appeared on the front page. Something seemed to have changed...