Bound by blood and steel, twins trained as Demon Slayers to protect humanity from the darkness that stalks the night. Their bond was unbreakable-until one fell to the very curse they swore to destroy. Torn apart by betrayal, their swords clash in a storm of grief, rage, and blood. When tragedy claims the sister's life, a new blade must rise from the ashes of despair, carrying the weight of vengeance, loss, and an oath shattered beyond repair. This is a tale of siblings divided by fate, where love becomes a weapon, loyalty twists into treachery, and survival demands a heart hardened against the cruelty of demons-and of family.