Name: If the name is Rei Bun, that needs to be the listed one, then Raven would be the in italics. However Rei Bun translates from my quick search to example sentence. So your characters parents willingly named their child example sentence. Karasu = Raven / Crow from my google translate attempt, might make more sense to go with that though neither are normal names.
Position: put 'Academy Student' here, you always choose positions from your village RP position board;
fallenblades.proboards.com/thread/24/konohagakure-positions-updated-march-2022 << - Konoha's
Alias: Needs a tag like [clan] [village] or so on to indicate who'd know them by this.
Appearance: Please make this into at least two paragraphs, typically the first is describing the physical traits of the character. Eye color, Hair Color, Hair style and length, description of any physical features. Second paragraph pertaining to the outfit which the character wears, color coding and the specific articles and whether they're modified.
Personality, as a five year old academy student this should be longer than history probably and include very little influence from history and the greater shinobi scheme. Though I assume the history will explain...
History: 17 paragraphs in and we get the first real mention of the character themselves. ""Raven" (れいぶん - 'Rei bun')."
I can't tell if three paragraphs later she used Sharingan, but without it as an SA that'll be a big no-no.
Even after this shifts to Raven, it really struggles to convey her why's and what's. You've written a story around her and this Qrow individual, but didn't explain how either of them got there. Why would Qrow's family explain his origins? Why would Kataki not get his daughter earlier if the raven had been watching over her? What gave Raven any reason to have hatred? Why would Imi teach her shinobi stuff or over strain her to be something he's against? If she had a strong anti-shinobi raising why isn't she more hesitant of these people?
Ultimately though I feel you're missing the 'how', how would someone so young react? I just feel prodigy or not, these are illogical reactions to the situations provided to people so young. I'm not a stickler for history, but you've gone above and beyond to create a whole cast of people, without really giving a fair portion to the MC; Raven.
That stated this history will need editing to add in those necessary details. Furthermore there's inconsistencies with site history too. In the past five + years, there's not been much conflict border of konoha and kusa, they're actually allied. Additionally the Uzumaki are a clan from the whirlpool who went to konoha and then later kusa to show the bond of their villages. They're almost an already established spy and kind of thus someone the village would have full eyes on.
Fighting style" is about using what you have and how you take on situations. You don't have an SA or jutsu for CQC, there's really no good establishment for this explained fighting style. History allows us to build a character, but rank forces us to start at a certain level. You've written history and fighting style far above the capabilities of even a prodigy academy student. Bare in mind the prodigy SA realistically is just giving you an excuse to start young or be proficient young. AS proficiency is still incredibly low.
Combat information:
Nature is your born element, you'd put fire here.
Affinity is your controlled elements, you'd have none as an academy student.
Inventory: Academy aren't allowed live ammunition, remove all weapons like senbon, kunai and shuriken.
Special Abilities: You clan's bloodline goes here and not in techniques, as an academy student you're allowed one SA so you'll have to pick.
Techniques: Remove the SA from here, you also as an academy student only get to start with three jutsu.