HP: I just wanted to drop out of school, but I saved the world

Traveling through the HP world, starting with Slytherin. But Jian Yu realized that there would be a war in this world seven years later, with countless casualties. In order to survive, she was determined to drop out of school and return to the Muggle world. Going to school is not easy, and dropping out is not easy? But she found that it was really not easy. When she violated various school rules, the professors gave her crazy extra points. When she deducted points from the school, her classmates admired her even more. When she tried to stay away from the protagonist, they came to her instead. Seven years later, Jian Yu, a leader in the magic world, looked at the vulnerable Voldemort and shook her head and sighed. "I just want to drop out of school, do you believe it?"...