(note that English is not my primary language so the following wall of text may contain many mistakes/flaws, if so please tell me and ill try to make things clearer)
Name: Sao Akira (*first name* *last name*)
Class: Shinigami
Age: 52 (appears to be 17)
Phys. Stats:
Height: 5'4"
Weight: 140 lbs
Hair: Brown/blond, a little bit shorter than shoulder lenght.
Eyes: Gray/Blue (they become dark blue when he fights seriously)
Face: his face is not that of a bishonen but is not ugly either, he leaves a good impression on people as far as looks goes.
Abilities:
Sao is a well trained Kido user, he prefers to user Hado for many reasons and so he has mastered quite a few of those (#4-byakurai and #31-shakkaho are his main attacks), the only Bakudo he has mastered is #9-geki as its the only one he considers usefull for himself.
He, however, has put a hold on Kido spells to focus more on hand to hand as well as swordsmanship training as those are his weaknesses. That also means that he has many half-learned Kido spells which he tries to make different use of than what they were initially meant to be used for.
The one thing no one understands yet is why he is training to improve his hand-to-hand fighting skills even though he has a zanpakto. There are rumors that the reason is he can only use Hado with his right hand and Bakudo with his left hand which would supposedly force him to switch hands during fights, this rumor has never been confirmed yet though since while training he is asked to only use his zanpakto (while this only applies to training, he never really took part of a serious battle so people rarelly see him using Kido).
summary of his abilities compared to the Academy's standards (assuming the average do-it-all shinigami is around 7 in all categories):
zanjutsu 3/10
hakuda 6/10
hohou 4/10
kido 9/10
Zanpakto:
Sao's zanpakto is a defensive type one even though he is more of an offensive shinigami (personnality wise and such).
Nenten-Oomi [Water type zanpakto](traduction: Twisting Long-blade): as said above Sao is an offensive type shinigami, but his zapakto is a defensive one, this however fits very well with his abilities as he currently has poor skills at handling swords ( he can see his enemies movements but doesnt have to to react to them yet).
The ability of Nenten-Oomi is to twist in any possible way at his owners will (note that it cant grow longer than the original lenght of the sword but simply twist) it can also be used as a whip but he doesnt use it like that very often as he is wide open while doing so.
This also helps Sao a lot as he is much harder to hit than he normally is, as a result he can cast Kido spells even while under attack in close range.
After the 1st release of Nenten-Oomi the shape/color/lenght doesnt change the least bit from the original zanpakto which makes it hard to tell wether its released or not.
Nenten-Oomi's appearance is that of a very beautiful lady made of water and wearing an armor made of steel with gold ornaments, it looks like its made of algae, you can see her golden eyes shining throught her helm. She is a lady-like woman who never says anything mean, Sao has never heard her talk to him in any other way than whispers.
He also thinks he knows what his Bankai will be like, however he doesnt know wether it will be offensive or defensive type, he only thinks he knows what form it will have as Nenten-Oomi herself gave him a hint by mistake, the hint was unclear and could've meant many things however he hopes he is right.
As his zanpakto is too long to be sheated on his side, his teachers from the Academy had the 12th division create a scabard which he could slice through and would then reform itself on its own, he hangs it on his back.
One of the downsides of his zanpakto is that while Nenten-Oomi is a closed-range type of zanpakto some of Sao's Kidos are mid/long-range type, such as Shakkaho, if he tries to use it in closed-range he takes the chance to hit himself in the detonation as well as the target.
Biography:
Born in Okinawa, Sao was killed at the age of ten in the human world.
After coming to Rukongai he was adopted by a familly in which was a person he eventually began to call "brother", that person was beginning his shinigami training, and everytime he came back for vacations and such he would teach Sao some Kido basics which Sao would practice the few months during which his brother was away, this is the reason he is so skilled at Kido and has quite a large amount of reitsu (note that by "quite large" i dont mean anywhere near single-digits from any squads, just very high fo someone who is about to enter the Academy).
he failed the Academy Entrance exam once and the Graduation exam four times because his skills with zanpakto were too poor, he finally succeeded the fifth time.
It is after seven years of intenss training that he finally released his shikai, and after another 12 years that he finally decided to apply to a division once and for all (before that he was sent on minor tasks by divisions who couldnt afford to send anymore members on said mission).His Academy teachers thought that he would join either the 4th division or the Kido squad, however he applied to the 11th division, during the tests (which Zaraki personally assisted to as he thought he could make fun of the guy who was full of himself enough to apply to the 11th with a defensive-type zanpakto) he defeated his oppenent while using his released sword as a kind of trebuchet to launch a #31-Shakkaho (this is also the only known time he used Nenten-Oomi as a whip). This convinced the higher ranked people from the division that that he did have talent, however he was refused due to his poor skills with his zanpakto when it came to close combat.
Now he is still Division-less as every division thinks of him as a risky choice since even though his Kido spells are effective he is still poorly skilled with swords even though he has improved with hand-to-hand combat.
He is a very reserved person who keeps secrets even from his closest friends saying its for their own good. However he is a very protective person, which is why he thinks his Shikai is a denfensive-type, he is also a very honest person, for example if you ask him something he doesnt want to talk about he will say it bluntly instead of lying. People tend to hate him when they first see him because of his very direct awswer to any questions, but they often change their opinion quickly as they get to know him.
Sao is also, since the first time he released his Shikai, asked to take the Academy's Graduation exam every year along with the ones who didnt pass it yet has he every time he barely passes it and the only reason he does so is because he his allowed to use his Shikai during the exam. The first time he did pass was a huge stroke of luck (which he often says is true himself).
As for women, he is interrested in them but has never really fallen in love, he did send quite a few girls crying with straight forward answers such as "no, i dont like you face" after being asked out, but this only helps makes him look like a honest guy from some girl's point of view.
His brother went missing during a mission in the human world 4 years ago, it is assumed he is dead as the research have been abandonned, Sao wasnt that troubled by his brother's death, he did cry and go to the funerals however since he became a shinigami Sao never had the time to talk with him for more than five minutes and during the last months before his brother went missing he didnt hear good things about him. (notes about Sao's brother: he was 79 years old (appeared to be 24), he was a fire-defensive-type shinigami, one of his abilities was to blind his oppenents with a sudden burst from his zanpakto)
Edit: change a few details and such.