This OC is by _MissHatake_ I hope you like it.
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Genre | Fanfiction (Although still in my drafts, but I intend to publish it sometime in the future once I gain more courage.)

Sure, I'm happy to help you before you fanfiction comes out. I know it came out and I'm sorry it took this long but you can bet, after this I will be reading your story.

Name | Uchiha Aijin (Literally meaning 'Mistress' / 'Lover'.)

That's a beautiful name.

Age | Part I {12-13}, Part II {15-17}, The Last {19}, Boruto {32-N/A}.

Oh ok so she's Sasuke's age. I can't wait to see how she survived the uchiha massacre.

Gender | Female.

Cool

Family |

Father {Uchiha Fugaku, deceased.}

Mother {Uchiha Mikoto, deceased.}

Older Brother {Uchiha Itachi, deceased in Part II.}

Younger Twin Brother {Uchiha Sasuke, alive.}Appearance (Sorry if this will be long!) |

Oh so she's Sasuke twin sister. That's nice. Also it's no problem, you don't have to worry about it being long or short. Thanks for the life status and the roles of everyone in the family.

Part I Aijin is the same height as Sasuke, which makes her stand out amongst her female peers. Her raven hair is kept up in a high ponytail and brushes just past her hips. She realizes the burden of having long hair, hence the length changes in Part II. Front bangs frame her face and are also pushed back by her hitai-ate she wears around her forehead. Her skin is pale, but not in an unhealthy way, and eyes are a beady onyx. Respectively, her and Sasuke are alike in terms of looks, but she also resembles her mother a lot.

Cool, this is a very nice description, I could see her as I was reading this. I also like how you give her a physical flaw by having her as tall as Sasuke making other girls look at her weird. Nice.

As a genin Aijin wears a short dark blue turtle neck tank top that ends just below her chest with the Uchiha clan crest on the back. She has fishnet gloves that end at her mid-arm, also covered by grayish/pale blue armwarmers that cover her forearms, accompanied by dark green gloves. Bandages cover her legs and just barely reach her torso, though only the latter is visible considering she also wears dark green shinobi pants that hang on her hips loosely. Aijin's weapon pouch is strapped around her right thigh, she also has multiple thin pouches stuffed with senbon coated in poison strapped around her legs, reaching from her mid-calf to the ankles, leaving her dark blue mid-calf shinobi boots sticking out. 

This is nice and I can imagine it but I would recommend having something under her shirt so her stomach isn't showing, she would be fine in Shippudden because she's older but not in the regular Naruto series. Maybe she could wear fishnets under it or bandages, if not than maybe another shirt underneath.

Part II Aijin's hair is let down but barely brush past her mid-arm, and her front bangs are pushed up and pulled back to connect at the middle back of her head with a simple hair-tie. She can't seem to tan, and still is a tall female that's only a little shorter than Sasuke.

Ok, this is great.

Part II Aijin wears a sleeveless turtleneck shirt that forms an upside down 'V', a bit darker than what she used to wear as a Genin, and is held together by a baby blue obi. Aijin keeps the mid arm length fishnet gloves, as well as the armwarmers that cover her mid arm, which are also baby blue. The Uchiha grows accustomed to black skin tight pants, her ninja pouch is strapped around her right thigh. Her shoes resemble Tsunade's.

Nice, and her outfit shared some characteristics with her genin outfit, good job.

Personality | Aijin isn't hot headed, nor is she anti-social like her brother. She's somewhat arrogant and thinks very highly of herself. Aijin is rather bold, in a bad sense, too forward; takes undue liberty; over assuming and confident; lacking proper modesty and restraint. Above all that, Aijin is protective, very much so, over her tight circle of friends and brother. She wouldn't hesitate to stand up for even a class clown Naruto, because even if she won't admit it, he's grown on her.

Ok, this is pretty good and nothing truly clashes that gives off a red flag so that's good, I would say that she should show her protective side in times of stress and extreme worry so it doesn't clash with her arrogant side.

Battle | Aijin relies heavily on her sharingan and tessen, a weapon she's stuck with through thick and thin all the way from her genin days. She's rather confident in her taijutsu and ninjutsu, but only knows her genjutsu is enough because of her kekkei genkai. Fire and Water jutsu's are her forte, which may seem weird because the two elements aren't all that compatible.

Nice, this is really good.

Past | While after the massacre Aijin was left heartbroken, she didn't let herself drown in eternal darkness and instead occupied herself with taking care of her brother, who instead focused on revenge. By no means did Aijin forgive Itachi, and she hated him with a burning passion, but instead strived to become a better Shinobi and protect what little family she has left. It caused her to take a lighter path and find strength in protecting those important to her, although her personality screamed she only cared about herself.

Oh ok so she takes the massacre as something different than what Sasuke did. Cool.

Haruno Sakura, a shy and awkward girl from the academy is partnered up with her for a protect on Konoha's founders, and they instantly make good friends. Out of everyone else from the academy, Aijin could confidently say she was her best female friend. While Sasuke saw it useless to create bonds, Aijin would beg to differ.

Awesome and I like how you actually made friends with Sakura and kept the traits she had when she was a kid. Great job.

When Chūnin exams came around, her opponent for the second round was Neji, and she ended up winning only by a jiffy, having ended up activating the third stage of her Sharingan. Aijin was immensely surprised by the victory, but claimed it with a smile. Neji came a week after and demanded a rematch, which she accepted with confidence but ended up losing. And so on, the next match was challenged by her. Thus, a strong rivalry and just as strong friendship was formed. Of course Aijin caught feelings, what girl wouldn't when you have a hot guy with a bad boy reputation and personality near you all the time? If Aijin was any less of a kunoichi, she would have fangirled over him since day 1.

Ok, this is good way to make her and Neji meet. There are other ways to have her develop a crush but this is very good nevertheless.

Relationship With Characters |

Uzumaki Naruto ~ He's a knucklehead with a heart bigger than his brain, that's for sure. Although Aijin sometimes likes to tease and poke fun of the blonde, she could call him a friend and he has her trust.

Nice, this is cool.

Uchiha Sasuke ~ He's her brother, of course they have a strong bond between them. That doesn't mean Sasuke acts any differently around Aijin, but he could show at least a smile around her.

Cool and I like how he is able to smile around her because she is the only person left from his past.

Haruno Sakura ~ Sakura and Aijin have been best friends since the academy, and the only person to put up with Aijin's really difficult personality. Hot head and arrogant don't clash together all that well, but who cares?

You know what, opposites attract, your right about Hot headed and Arrogant not mixing well too but that's what's gonna make the relationship more interesting.

Nara Shikamaru ~ They've never really spoken much, but Aijin would say he has a brain behind that lazy attitude. She's confused as to why he acted like an idiot in the academy all the time, though.

Nice, Shikamaru didn't really talk to many people but he was always smart so I'm glad you kept that about him.

Yamanaka Ino ~ Aijin would sometimes go out with both her and Sakura at times, and Ino was this girl that wasn't scared to speak her mind, which kind of amused Aijin. They aren't the best of friends, but Aijin can put up with her complains and constant questions on her brother.

I'm just glad to see a OC girl get along with Sakura and ino, for the first time in forever.

Akimichi Chouji ~ Aijin never once interacted with the boy, so her opinion on him never changed ever since she saw him. He was a hit overweight (not that it was a problem or anything) but had a heart of gold.

Beautiful

Inuzuka Kiba ~ The unnoticed hottie in the back of the class. Aijin would honestly go for him if it weren't for Neji, because Kiba liked to skip class and had this attitude that captured her attention.

Oh ok, this is very interesting as well.

Hyūga Hinata ~ Clan heiress. Aijin's relationship with Hinata is unique, since she tried to approach her on multiple occasions but the latter was too shy to speak. They would see each other on clan meetings occasionally.

Another OC that broke the record. Thank you for not treating Hinata like a helpless baby. Seriously, thank you.

Aburame Shino ~ Aijin only spoke to him two times, and each were very short. She wasn't afraid of his kikachu, so they were fine and actually could be good friends if only Shino wasn't as Anti-Social. Still, they're on good terms.

Cool, and thanks for remembering Shino, many people forget him and I myself have a one point.

Rock Lee ~ This is someone Aijin would straight up avoid. Not only is he plain weird, his eyebrows had given her nightmares for days. Despite all that, she had to acknowledge his determination and hard work, along with his skills. She respected the boy a lot.

Nice, Lee's determination is for sure respectful.

TenTen ~ Aijin never really liked her all that much because she spent a little too much time with her crush. Still, the girl was skilled and easy to talk to, so she could somewhat tolerate her.

Oh so she's jealous of Tenten, I can't wait to see what happens in the story with these two.

Hyūga Neji ~ He's her crush. But Aijin wouldn't let him find that out. She sticks to insulting and occasionally teasing him from time to time. Neji usually ignores that and skips straight to the spars, much to her disappointment.

That is a spot on Neji and I will be rooting for them in the story. Especially sense you didn't change him for your personal benefit. Great job.

Other | Aijin has this weird obsession with Senju Hashirama, the first Hokage, and has done an unhealthy amount of research on him. She worships him like a God (no pun intended).

Awesome and that's actually really funny because you would think she would do research on Madara, but nope it's Hashirama. That's a nice little fun fact that just adds more to her character.
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Final Analysis- This OC is really good and has little to work on if any. In fact the only real problem I could find was the shirt thing in her genin appearance, other than that this OC is really good. I highly recommend anyone to read this story and I will be reading it too. Thank you for letting me review your OC, it was a honor.
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