Suite à une extinction de l'humanité, une adolescente éduquée seule par une mère droïde voit son monde basculer lorsqu'elle rencontre une survivante.

Kidnapped and held hostage in a high-speed elevator in a 120-floor building in Shanghai, Aria Wolf has no memory of her past, who her captors are, or what they want from her. Pushed to her limits, she realises she has incredible powers within, and that unlocking these powers is her only chance to escape.