In a realm where sorcery and technology intertwine, Rayotte Steinberg stands alone as a tactical mage confronting beasts. Once humans, they abused forbidden arcane forces and transformed into monsters. He is restrained by a rigid cage called 'mold' that preserves his humanity. In his grasp, a staff named 'staff' unleashes explosive magic. Casting spells propels him closer to monstrosity; abstaining leads to death. Through brutal confrontations, he must confront a past transgression. Each encounter tests his resolve, forcing him to weigh the cost of power against the price of survival. Reconciling with darkness, hopes to reclaim the life knew.