In a reimagined contemporary Germany, a surge of biomechanical beings called Demoniacs emerges from the remains of the deceased, blending flesh with machinery to enhance their prowess. To combat this menace, the Xenogenesis Assault Team (XAT) is assembled to safeguard the populace by engaging these hybrid threats. However, the situation escalates as some living humans acquire Demoniac abilities, exhibiting control over their powers and rational thought. Amidst this turmoil, conflicting ideologies surface among these empowered individuals: some opt to safeguard humanity, while others advocate for its downfall at the hands of the Demoniacs. As tensions rise, a pivotal figure known as the Blassreiter emerges from this chaos, poised to either deliver salvation or plunge the world into ruin. The fate of mankind hangs in the balance as this enigmatic leader's choices shape the destiny of all.