I have read the original novel six times, but this article is purely a self-released work and has nothing to do with the original work. Not having read the original work does not affect any reading. The characters belong to Ms. Rowling and the OOC belongs to me.
The HP series has a grand and profound world view and a very magical main storyline, like a fairy tale extracted from the adult world. I want to write a possible story under adult rules.
In one sentence: British society has undergone tremendous changes. Potter has come to Slytherin, and little Grindelwald has come to Hogwarts, so many things will be different.