A story about data tampering. In this age of data, people tamper with data and use the altered data to create the illusion of mass amnesia or confused memories, forcibly changing the truth and making people lose themselves between reality and illusion. Even many high-ranking officials with access to databases use data to change whatever they want and do whatever they please, bringing disorder and decay to society. The world of data is like a mirror within a mirror, stretching out without end.