Hi there, this is my contest entry:

Ok, everyone ready for a LONG explanation?

Name: Takara[Treasure] (Doesn't remember last name) In fact, discarded her first name [Asami] after a run in with Orochimaru and chose Takara instead, after being brainwashed by Orochimaru into Takara)
Age: Lets say from 20-25, too few people have seen her to be certain of it.

Takara lives outside of Konoha Village, she is scared of outsiders, and prefers to be with animals. In fact, she gets quite lonely by herself, but she is quite wary of new people. However, when she does get to know someone, she gets quite open and lively (as seen by the picture).
She was actually in training at the Ninja Academy as the same time as Kakashi was, during that time, she grew quite attatched to him, however it was (and still is) pretty one sided, Kakashi having returned her affections on rare occasions, usually when he was drunk or something like that.
However, Takara was not always her name (as stated at top) While on a mission, Takara ( or Asami as she was called) was captured by Orochimaru, she was presumed dead and everyone gave up searching for her. While in reality she was being held in his underground base. Because of her unnatural chakra amount, Orochimaru called her Takara (Treasure) and proceeded to conduct many, many experiments on her. After a year of torturous experiments, Takara finally had enough, seizing an open spot, she grabbed the first thing that had, a rope, and strangled one of Orochimaru's underlings, she proceeded to use her new weapon to escape Orochimaru.
She returned to Konoha, only to find that she was thought dead, the first person she told was Kakashi, then decided it was better to stay dead. Takara fearing that Orochimaru would come back for her, as a result, she now lives in the woods surrounding Konaha, she has become unmatchable in tracking and stealth, learning from animals and other forest creatures.
However, the experiments from Orochimaru paid their price, as a result of the Chakra experiments, Takara has lost over half her Chakra and can barely preform simple ninjutsu, instead, she makes up for it with unbelievably fast whip combos. Only Kakshi knows that she's alive, but it really doesn't matter to him.
Takara is playful when she feels she's safe, other than that, she is quite and shy (we're talking like worse than Hinata shy here). However she is a very hard fighter to read as she never changes her expression from a slightly nervous look, regardless of what she's thinking.

OK, I'm sorry that was so long, and I tried to shorten it too! T_T
Well here it is! Hikari Morgami, if you need more sketched, I can throw them up!