Fantasy I Have a Future Diary

When you pick up a black diary, it records everything that will happen in the future, but it is incompatible with reality. None of the things recorded in it can happen. Who wrote it in it? When I wrote "Destroy the world" in my diary, a certain world began to fall apart, and a certain page of the diary began to gradually disappear. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.