Seven years after a cataclysm shattered humanity, Kamitsubaki City rises as a beacon of science and progress. Yet within its gloom dwell Tesseractor, creatures forged from human malevolence. Only the Witchling—five girls whose voices command sorcery—stand against them. With each utterance, they battle not merely to safeguard the city"s tranquility but also to heal a fractured world, restoring hope for the future of humanity together.