Every weapon tells a story. Sara's is written in blood. Sara doesn't remember her parents-only the crystal necklace they left behind and the sound of the gunfire that ended their lives. In a world where a demon's power directly mirrors their deepest trauma, Sara's blood hardens into lethal firearms. For years, she lived as a quiet stray, practicing in secret with the only friend she ever had. But when that friend is brutally taken by a Demon Executor, the grief triggers something monstrous inside her. Sara breaks, unlocking the out-of-control Demonoid mode and leaving a trail of ash in her wake. Now a student at a secluded sanctuary for her kind, Sara tries to blend in with her quiet, friendly nature. But a dark legacy runs through her veins. As the true origin of her bloodline begins to surface, Sara must decide if she will use her awakening power for survival-or let her thirst for vengeance burn the world to the ground.