He is Humanity's strongest soldier and last hope, She is from the future and Humanity's destruction at best. She is unlike anything they've ever experienced before, taking the threats with her from the future. She is followed by her loyal team to this new world where she has to face an entirely new threat. Foes become friends and friends become foes.

You were captured from your family when you were only 8 and brought to the Undergorund City, brutal experiments getting conducted so that wings sprouted from your back and your senses were heightened to inhuman levels. Fast forward 15 years and you've become a legend on the streets, no one knowing you had wings, yet earning the nickname "Devil's Angel". The Survey Corps became interested, but when they came to persuade you to join them, what they met was not something they were ready for. Neither was a particular Corporal, who gradually became more and more interested in her individuality.