This is a “Magic and Mystery” by “Allegory_for_hatred” reaction!!🫶
The fanfic is about Dazai Osamu from Bungou Stray Dogs going undercover as a student at Hogwarts school of witchcraft and wizardry from Harry Potter. I 100% recommend this fic it’s the best. It can be found on Ao3 and here’s the link💗💗
https://archiveofourown.org/users/Allegory_for_Hatred/pseuds/Allegory_for_Hatred