Quack! What About Going Back in Time?

In the bustling ancient city, there is an inconspicuous little bookstore hidden. The appearance of the bookstore is simple, but the interior is unique. The protagonist Li Qing, a young scholar, accidentally discovered the secret of the bookstore-it can transport people into the world of books and experience the bizarre world in the books. The owner of the bookstore, a mysterious old man, told Li Qing that he had been selected to become a new generation of time travellers, responsible for maintaining world peace in the book.