Marauders

You are Lily So what if dumbledore found out out secrets about the marauders and lily and told all of Hogwarts eg. Remus being a werewolf and wanted revenge so they joined Voldemort and became death eaters and got revenge on Hogwarts and being death eaters meaning James and lily (you) didn’t die Sirius wasn’t sent to Azkaban and Peter didn’t betray them and Harry was born and still had his parents so when Harry goes to Hogwarts he becomes a slytherin like the sorting hat would have if Harry didn’t say no the Harry would be friends with the other slytherins eg. Draco Mattheo (yes i know he’s fanmade but I’m still including him don’t like it to bad) and Harry will most likely become a death eater like you James Remus Sirius and Peter and Sirius will be with regulus so they will have a good sibling relationship