Level

The truth was that it was the principal who assaulted the science teacher before. And for the science teacher, who should have been avoiding the principal and never want to see him ever again, was transferred to where the principal is because the principal used his connections to make it happen! It was him who was stalking her! As for why he spread hate for her to the entire school, it is to make the science teacher be isolated and devastated that she doesn't have anyone to help her! That was to make her feel helpless and hopeless until she breaks!