It is often reported in the media that many highly educated managers, bosses and teachers are actually the devil wears Prada behind their backs, with many amazing quirks, full of tricks and cruelty. I'm sure you have heard of it. If we let him get away with it now, he will push his luck and the consequences will be unimaginable.
So before any major event is released, the most direct and effective way is to find the principal directly! You can write a joint letter or the whole class can rush directly to the principal's office to report the situation. Your headmaster should not want to ruin the reputation of the whole school because of a little graduate student.
And collect evidence lest he deny that there is no such thing. Well, witnesses are enough, but physical evidence is needed. You can secretly photograph him with your mobile phone when he comes to the girls' dormitory next time, and scream as loudly as possible, so that you can fully explain how much harm he has caused you. This can also be uploaded to the internet when it is useless to find the principal. With such a developed network, tens of millions of people will soon pay attention to your experience. At that time, under the pressure of public opinion, it will be difficult for you, the head teacher of a graduate student, not to be laid off ~
Here, I wish you all an early escape from the clutches and "abuse" of the class teacher.
And if you think my analysis and suggestions are useful, please give me ~ o (∩ _ ∩) o.