Puella Magi Akane Magica (A Madoka Magica Fanfiction)

For a long, painful year, Tsukino Akane, a young girl imprisoned from birth in her own home, is visited by the Incubator, Kyubey, who offers to free her if she becomes a magical girl. For a year, she refuses, stubbornly wanting to preserve her humanity. One day, she breaks. Beaten down by hatred and pain, she decides she doesn't need her humanity any more... and Tsukino Akane the magical girl is born, with the vague wish for "freedom" and a power she doesn't know how to control...