Name: Subaru Nakajima
Age: 16
Gender: Female.
Appearance: Subaru
Canon, AU, or OC?: Canon
Universe of Origin: Magical Girl Lyrical Nanoha (from somewhere around the time of Sound Stage X)
Personality: A boisterous and cheerful tomboy with a with a strong drive for self-improvement and a genuine desire to help others. Subaru is a hot-blooded and determined fighter who puts 100% of herself into whatever she's put her mind to, and who isn't afraid of hardship or pain if it means achieving her goals. She is a straightforward and honest soul, and tends to take things too personally when her efforts to help others fail.
Abilities/Weapons:
Mach Caliber: Subaru's Intelligent Device, a sentient magical AI built into a set of powered roller-blades. She assists Subaru with the casting of her spells and improves her magical efficiency, while also providing her with transport and tactical advice (as well as generally being a good friend). When not in use she reverts to her standby form, a blue crystal pendant.
Revolver Knuckle: Subaru's second Device, non-sentient this time, taking the form of a large armoured gauntlet with two counter-rotating gears. Set above the the wrist is a revolver-like cylinder that is loaded with special cartridges filled with concentrated magic. These can be fired off to dramatically boost Subaru's mana pool. Half of a pair once worn by Subaru's dead mother, Revolver Knuckle is Subaru's main weapon.
Magic: Subaru's magic style is a lot more in-your-face than other mages. Full spell list can be found here, but in general she uses magically-enhanced punches and mid-to-short-ranged shockwave attacks. Also notable is Wing Road, a mobility spell that creates a magical path through the air, allowing her to effectively fly using her roller-blades.
Barrier jacket: Magical armour that provides Subaru with a substantial increase in durability. Can be summoned and un-summoned at will.
Combat Cyborg implants: As a cyborg, Subaru is stronger and more durable than a normal human. Actually activating her implants increases her strength and durability even further, and also allows her to use her Inherant Skill Vibration Shatter, a powerful shockwave attack specifically designed to damage electronic equipment.
Backstory: Subaru was born, or more accurately, created as part of a clandestine project to develop powerful cyborg soldiers, cloned from the stolen DNA of an elite mage and implanted with cybernetics at an early age. Luckily, the facility where she and her older sister Ginga were made was raided by the Time-Space Administration Bureau, and the pair were rescued and adopted by a kindly mage - the very same woman they had been cloned from.
After this the pair lived a fairly normal life, until a turning point came when she was 11 years old. She was caught in a fire while visiting her father, and was saved by Captain Nanoha Takamachi, the TSAB Air Force's Ace of Aces. She found herself in awe of this powerful, unshakable woman, and was ashamed that all she'd been able to do herself was cry.
This, along with the earlier death of her mother, inspired Subaru to make more of herself. Striving to emulate her hero, she joined the TSAB and became a mage. She was eventually recruited into a newly formed special unit and served under Nanoha herself, working to uncover and foil a plot that had roots in the same project that created her (Yes, this is an enormously abridged version of the events of StrikerS. More details are up in the wiki link above).
Presently, her career has continued its upwards climb - she joined an elite disaster response and rescue unit, and is regularly rotated into service with the UMMA.
Faction: UMMA