In a devastated world where humanity struggles to survive, only those who possess the rare metal Noxium can face the terrifying ghouls—creatures capable of reducing cities to ashes. Kay, a lazy yet skilled young man, and his childhood friend Mira, join the Liberation Army, armed with determination and secrets from the past. Amid deadly battles and bonds that will be tested, both must discover how far they are willing to go to protect those they love and resist the advance of the ghouls.