Ninghai University Library has seven floors.
But students are only allowed on the sixth floor.
The seventh floor was never opened.
Three years ago, a computer science student entered there and then disappeared.
Three years later, I discovered his records in an encrypted folder.
There is only one sentence in it:
"Don't let the system know who you are."
Only later did I understand.
The seventh floor of the library is not a library.
That was an experiment.
An experiment using college students to train artificial intelligence.
All participants have a number.
I am:
019.
