[Harry Potter] Classmate, I’m Your Teacher!

This is an utterly useless blurb--- Teaching is a noble profession. Yes, at least that's what I think. But... "You'd better get this place cleaned up right now..." Snape glared at me. I immediately scurried off to clean the Potions Room. "Teacher, do you like Headmaster Dumbledore? Harry said you went on a date with him yesterday!" a student whispered, wearing a serious expression but sounding incredibly gossipy. Me: "Date your sister! Ron, get over here and copy page 369 of History of Magic a hundred times!!!" "Teacher, I have a question. Given that 3X + 2Y = 2Z + W, and the mass ratio of X and Y when they react completely is 3:4, if the combined mass of Z and W produced is 140 g, what is the mass of Y consumed in the reaction? Also, in an aqueous solution at a certain pH, an amino acid is added. The tendency of the amino acid to dissociate into anions and cations is equal, so it becomes a zwitterion. What is this pH called?" TAT Hermione, are you trying to make things difficult for me? This is Hogwarts, not a school for geniuses!!!! "Malfoy! Pay attention in class! Stop whispering to Pansy!" I hurled a Potions book at him, and he just curled his lip into a smile. "Teacher, jealousy doesn't suit you..." Oh, come on! Have some respect and stop being so full of yourself!!!! Simply put, it's about someone who transmigrates and becomes a... teacher? Nanny? Or some weird auntie?