I, Han Zhi, a good young man of the 21st century, traveled through time after being hungover. Others who travel through time are not all ladies of the noble family, the daughters of generals, if they are really not evil and concubines, or even worse, they are the number one in a brothel. What am I? Beggar? ! It's really a dog at the beginning...
Concept: All unexpected encounters and long-awaited reunions are independent variables in the equation, and we can only stay at the other end of the equal sign.