A swordsmith with a chivalrous heart forges twenty-four legendary blades and gifts them to righteous warriors, earning the title Master of the Twenty-Four Swords. He later retires to work as a blacksmith and meets a tofu seller. The two fall in love and marry. Three years later, he learns she is the daughter of a high-ranking governor. When her family is targeted by an assassin sect and invaded by enemies, the blacksmith gradually reveals his hidden mastery and true identity as the legendary swordsman.
