[HP] butterfly effect

This is the story of a woman who struggled to study and graduated peacefully
Sorting Hat: What was your greatest wish to come to Hogwarts?
Aurora: I want to graduate peacefully, go back to school, and finally create with my own hands...
Sorting Hat: Hufflepuff!!

Here's a story that perfectly confirms Murphy's Law:
Aurora: Remus, I just heard from those guys that there is a new teacher who is going to teach us Potions, supposedly Snape. Do you know him? I looked like they were desperate.
Lupin: (A thousand words in the wind)

Here's a story of Hufflepuff and Slytherin fighting wits and bravery all the way to the face:
She pondered for a long time, and finally decided to write a letter for help:
What to do if the fan article of the teacher is seen by the teacher himself, online, etc., is quite urgent.

Here's a story about the saga:
Old alumnus: You were a legend back then. I haven't seen it for a few years, is there anything more legendary to say and hear?
Aurora: Does it count if you push down your dean?