HP: That Red-Haired Savior

[Old, cringeworthy early work. Don't read.] Heh, heh... This seems like a pretty interesting place... But no matter how you look at it, fighting with a little twig is just... unsettling, isn't it? Aren't you afraid it'll snap by accident? Huh, there's no place like Heaven's Arena here? That takes away a lot of the fun! I'm unhappy... Oh, what's this? A little wizard's home? Hmm~ A place full of little fruits? That's... wonderful~ Hogwarts, hmm hmm~ Please note: 1. The protagonist has twisted morals, no shame, and a perverted streak. 2. A whole bunch of people will be thoroughly messed up [for example, the headmaster, professors, the Demon King...]. 3. There may be unexpected crossovers, as well as characterization and plot going off the rails, and OOC. 4. Fiction is not reality. Please don't conflate characters' beliefs with those of real people. The protagonist is Hisoka, written according to the author's interpretation, with some changes as well. If you haven't read Hunter x Hunter, you can treat him as an original character. Also, the author thinks Hisoka is absolutely a good guy in Hunter x Hunter. Look at how he treats Gon and the others, he couldn't be more protective [give it a rest, ]. Okay, fine, he's raising fruit... Anything that doesn't match the facts is included only for the sake of the plot. Any views expressed in this story represent only the author, or are there for plot reasons. If you don't like it, please don't flame me. Character OOC and plot holes are unavoidable. If you spot any, feel free to point them out kindly, and the author will do their best to fix them. Of course, if they can't be fixed, such as when they affect the plot, there's nothing to be done. Theme: