Okay, so honestly I'm a tad obsessed with the *special* male characters in Sailor Moon. And Sailor Moon in general. I love the art style, the story, the characters, but damn do those guys get my creative energy flowing. So here are a couple differnt ideas I had running through my head about Harry Potter paired with the various guys of Sailor Moon (except Mamoru/Darien of course cuz I don't sink Ships...well, I try not to anyway).
Two things - ONE, I'm sticking with Japanese names for my own personal amusement and TWO, I know this is all gonna sound OOC and MarySue/GaryStu as fuck, but I just felt the need to bullshit the small stuff to get to the actual bits I car about (that is, Harry meeting each guy and going from there...at least I give a BIT of background so please don't kill me for taking the easy/overdone routs of solving all of Harry's problems)
"PROLOGUE"
Okay so there will be a different chapter for each guy Harry would end up with so here is the
BLANKET REASONING FOR HARRY BEING INSERTED INTO SAILOR MOON UNIVERSE
It is summer and the Dursley's are to be moved to the Japan branch of Grunnings Drill Company as a promotion. Harry is forced to go with them. It is right after Harry's 4th year, no Horcruxes, Harry was able to kill Voldemort before he was resurrected by giving his blood willingly which destroyed the golem like body. Cedric was killed though so he has huge guilt over that and nobody would believe him (or take his memories or try to use a truth potion on him or basically do ANYTHING to verify his story) so he was kicked out since they have no evidence that he actually did anything (his wand doesn't have any spells revealed that could have done the job) so his wand was snapped and he was banned.
The Dursley's take pleasure in knowing this and taunt him, shoved him back in the cupboard and everything. The only reason they didn't just ditch him is because the company has his info on file and they paid for 4 tickets to Japan. Harry is able to get in contact with Gringotts (the goblins not following Wizard law, the banishment of Harry from the wizarding world makes no impact on his ability to use the bank - he just won't be able to stroll down Diagon Alley). He contacts the goblins, finds out people have been trying to steal from him, gets all new vault keys and everything taken returned with interest, and gets a special Gringotts bank card that will work anywhere, even the muggle world, just like a muggle credit card. Banishing Harry made him a legal adult in the goblins eyes so he has full access to everything.
Sirius gets mad at life and sends Harry a message (him and Remus were chilling out in the Bahama's since Sirius is still literally only considered a criminal in Britain) and next thing you know Harry is legally Sirius's son (in the muggle world at least) and the three of them find a home in Tokyo (away from the Dursley's and everything). Magical Japan is more open minded and welcome Harry, Sirius, and Remus with open arms and citizenship (for both magical and muggle worlds). Harry gets a new wand, Fawkes pops in and gives him another feather! No magical schools in Japan cuz they like master/apprentice system more. Remus happily takes to tutoring Harry. Harry goes to Muggle School during the day then he's in either the same school as Shingo or Usagi, depending on which one works better for the story line. OH, and Harry will go by "Hari" because they're in Japan and I think it's cute.