Thirteen-year-old math prodigy Fei Li lost everything in the disaster that struck Beijing. As she lay dying, a warrior from the mysterious organization Faust awakened the power of destruction sleeping within her.
But power could not fill the emptiness. On countless sleepless nights, she was still the girl who curled up in fear after a nightmare, placing all her trust in the commander who had saved her. She carefully planned her escape in hopes of returning to an ordinary life, but fate once again took away the last of her family and crushed her faint hope completely.
Her instinct to survive ultimately became a blaze of vengeance against the extraterrestrial invaders. She willingly donned Faust's shackles and set out on two entirely different paths: on the icy plains of Xigaze, she was a witch who struck fear into her enemies, and a fragile, gravely wounded soldier who fell unconscious after the battle; in the shadows of the Rome Opera House, she was a deadly note lying in wait, yet in some secluded corner, her uncertainty showed.
When hatred, justice, protection, devotion, worth, efficiency, friendship, and a broken heart come together, what final movement will she play for this world on the brink of destruction?