C1264 There Are No Natural Rules

I went back to working on the book.

However, this time it was not working.

No matter how I flip through it, this book will no longer be able to find any tricks.

I flip through until three o'clock in the night. The book is about to fall apart because of me, but it still doesn't work at all.

When I felt sleepy, I finally couldn't take it anymore and fell asleep