My Naruto OC

My Naruto OC, Byoki (disease is Japanese). Byoki is Hinata's long-lost childhood friend. Byoki disappeared, but came back during the genin exams. She came back wearing a strange band, and she is a powerful ninja, and gets placed in Rock Lee's squead in a last minute fashion. Byoki develops a small crush on Neji, but he doesn't like her because she is very close to Hinata. Then, the crush develops into undying love when Neji saves her. Byoki does have a disease...a very fatal one. But it truly doesn't affect her...unless the people she cares about are dying. As Tenten and Neji are being beaten to the verge of death, she gets ghostly features. Her hair becomes shadowy, her skin gets pure white, and her clothes become a black shadowy dress. She gets immense power, but is still in control, but these attacks quickly drain her chakra, and she ends up dying, and Neji saves her by giving her some of his chakra. Byoki is very serious, but cheerful. She tells Neji to back off whenever he makes fun of Hinata.