After the College Entrance Examination, I Received the Admission Notice to the Underworld

Beginning... I went to my hometown and when I came back, I found that my ID card had been demagnetized for no reason. There is no information about me in the household registration, and my contacts in the address book are slowly disappearing. The account I usually use to log in to the game is shown as "unregistered", and even the college entrance examination results show "no such person", as if the world is erasing me bit by bit. I did not receive the admission notice for the college entrance examination, but I received the admission notice from the underworld. Even the fortune teller said I was "a dead man"