The Book of Crossing People

I was a college dog about to enter college, but because of my inexplicable curiosity and an unnamed book passed down from my family, I turned into a different kind of person. I learned a more magical method than magic. From then on, I could overcome all monsters, ghosts, demons and monsters. As the saying goes, if the law does not save others, it is difficult to save yourself. If you don't obey, I will save you!