What could be the plot of 'Harry Potter goes to killer school fanfiction'?

One possible main antagonist could be the headmaster of the killer school. If the school is a place that values strength and ruthlessness, the headmaster might be a tyrant who enjoys seeing students struggle and fail. He or she could be constantly setting up dangerous situations for Harry just to test him.

Well, it could be about Harry attending a Japanese school of magic. Maybe he has to learn Japanese spells and deal with Japanese magical creatures. He might also face cultural differences in the way magic is taught and practiced in Japan compared to Hogwarts.

Well, maybe Harry would learn combat magic in a more disciplined way. He could face new challenges like strict military training regimens while also using his magical skills. For example, he might have to learn how to combine spells for strategic attacks during mock battles.

One possible plot could be Harry struggling to adapt to the strict discipline of military school at first. He might have conflicts with the drill sergeants who are tough on him. But as time goes by, he discovers his own inner strength and leadership skills, and eventually earns the respect of his peers and instructors.

Well, it could be about Death taking on a form that can attend Hogwarts with Harry. Maybe it's there to protect him in a more direct way than the usual magical means. It might interact with Harry's friends, causing some confusion and also some revelations about the nature of life and death in the wizarding world.

Maybe Harry could struggle with the language at first. He might make new friends who introduce him to French wizarding traditions. And he could have adventures in the unique French school setting.

In the 'Harry goes to Egypt school fanfiction', it could be that Harry is sent to an Egyptian school of magic for a semester. There, he discovers that the curriculum focuses a great deal on elemental magic which is closely tied to the desert environment. He has to adapt to a whole new set of magical rules and social norms. For example, in their dueling classes, they use different types of spells that are based on the power of the sun and sand. Harry also has to deal with some students who are jealous of his fame from Hogwarts, but he eventually wins them over with his skills and kind heart.

Well, perhaps Harry Potter goes to Dalton and discovers a whole new world of magic there. Maybe he meets new friends and has to face different challenges compared to Hogwarts.

In this fanfiction, it could be that Harry Potter has a vision of a future where Voldemort has completely taken over the wizarding world and killed all his loved ones. This drives him into a state of madness and he goes on a rampage. He travels back in time using some ancient magic he discovers, and starts to take out all the Death Eaters one by one, not caring about the consequences, as he believes it's the only way to change the future.

One possibility could be that after facing too many dark magic encounters, Harry's mind starts to break. Maybe the constant threat from Voldemort and the losses he endures, like the death of his friends, push him over the edge. He could start to have hallucinations and lose his ability to distinguish between reality and dark magic-induced illusions.