Repair the Broken Book, I Steal the Inheritance of All Realms

Lu Chen, 24 years old, had nowhere to go after graduating from the history department of the university. He accidentally entered an ancient book restoration shop that was about to close down and became an apprentice. Master Chen Shouyi is a sloppy old man who drinks and brags all day long, but his craftsmanship is indeed superb. Lu Chen originally just wanted to make a living, until one day, when he was repairing a broken military book from the Ming Dynasty, his consciousness was suddenly pulled into an ancient battlefield with mountains of corpses and seas of blood...