Librarian Chen Mo, who was humiliated in public by his ex-girlfriend and a rich second generation, unexpectedly obtained the right to borrow from a forbidden library. He used the rules in the book to modify reality and was madly slapped in the face. However, on the way to revenge, he discovered that the world was being eroded by a doomsday book. He must rush to uncover the mystery of his life experience as the only "living bookmark" that can change the ending before the last page is opened.
