Apprentice mask maker Peru should have known the perils of The Masks. Possessed by the Mask of the Warrior God, he unintentionally kills his friends and his master, the legendary Gaston Roux. Wracked with guilt, Peru vows to destroy every mask his master created before tragedy strikes again. As his mission takes him around the world, Peru makes friends, battles enemies, and reckons with his sins.

Chihiro Rokuhira is a boy who aspires to become a swordsmith, and took daily training under his father Kunishige, a renowned swordsmith. Their days, once filled with laughter, are brutally torn apart by an attack from the mysterious sorcerer organization, the Hishaku. What is stolen from them are the six Enchanted Blades—swords of immense power capable of shaping the fate of the nation—and the gentle, warm life they once shared. From that day on, everything changed. In a world engulfed in darkness, Chihiro takes up Enten, the seventh Enchanted Blade left behind by his father, and sets out on a blood-soaked path of revenge.