Making up the Three Kingdoms

In a certain science and technology high school, a strange magic mirror was discovered, which actually created a black hole and transported the students present to the Three Kingdoms period. And because of their time travel, it led to the chaos of the Three Kingdoms period in history. People who shouldn't have appeared appeared, but events that should have happened didn't happen... And what new things will Tianjing and Meiling encounter in this chaotic time and space after accidentally traveling through it...