we are in 2024, you are all 16 years old and in your 6th year at Hogwarts, you and the Slytherin boys (Mattheo, Draco, Enzo, Theodort, Regulus,...) and Slytherin girls (Daphne, Pansy, Astoria,...) they stopped being friends in 2023...

Dumbledore wanted to make a game at the beginning of the year and all the students wrote what they regret (anonymous) and Dumbledore took a piece of paper and read it out loud

Dumbledore: "all this days i dont regret anything but i want go back to 2023"