Before all of these stories in this all-knowing book that has written everything ever since the first existence. It has knowledge of everything and writing in it can cause whatever you write can occur. In each time period of existence there is the F-, F+, D-, D+, C-, C+, B-, B+, A-, A+. Each one is an existence period and once that ends it is destroyed and a new one is made, naturally or because some insanely overpowered person destroys it. Right now, in this book we are in the A+ universe. And will soon be due for the cycle to restart for we are GEN 1 of the cycle. The first generation, it is possible to survive an existence reset but good luck surviving in a completely new place.
This book has ended and will venture to the past of the A- universe. Before our time