Nikke: Goddess of Victory Novel Adaptation

The Rapture invasion came without warning. It was both ruthless and overwhelming. In what seemed like an instant, Earth was turned into a sea of flames. A huge majority of humanity were hunted down and slaughtered without mercy. But as mankind’s total annihilation crept closer and the last survivors were pushed back to the Ark, a glimmer of hope was discovered. Humanoid weapons, code-named Nikke, were created and the counter-offensive began. They are mankind’s last chance at victory.