A young working god in the fairy world library and a new employee in the fairy world accidentally burned a hole in the "Book of Fate". In order to save the situation, they had to go down to earth to repair it. Others are having a great time traveling through time, so we can only travel through books... Accept our fate! (The author's resume is incompetent, please take a look at it. Also, because I am too busy, I can only update it twice a week. I hope you can understand!)