Travel to Another Time and Space and Become a Prince

A person who only loves reading and a librarian travels to another time and space and possesses a gangster, but retains the memories and personality traits of the two people. When a nerd meets a gangster, what kind of reaction will there be? After all, knowledge is power? Or are gangsters more adaptable to survival? A completely unfamiliar world. I only know that the development of the era was at the end of the Sui Dynasty and the beginning of the Tang Dynasty, but it was an out-and-out troubled world. So what is the golden finger? How to write a glorious legend in another time and space? Another: Good news, Yue Guanda has been invited to play a guest role in the second volume! ! ! Hey, guess what will be played?