There are two protagonists in this book, one has traveled through time and the other has been reborn.
Zhu Bing traveled through modern times and grew up to look exactly like Liu Guangqi.
Silly Zhu was eaten by wild dogs in the bridge cave in his previous life, and he was reborn with resentment. (Chapter 26 Silly Pillar Reborn)
Very good, always suspected, always lied