In a realm where bullets wield magic through spells, enabling the summoning of mighty beasts, a legendary witch once dared to defy deities and faced a fateful curse. A decade prior, she vanquished a rival sorcerer, rescuing a young admirer named Zero, who adopted guns as his emblem of justice. Zero embarks on a journey to reunite with his savior, only to discover a changed woman—selfish, brash, and diminutive. Despite her flaws, she unleashes extraordinary power when touched by Zero's devotion and sacrifice. United by a quest to lift the curse and unveil the gods' motivations, the unlikely duo ventures forth.