Baek Yeon, the youngest son of a warlord, is raised to inherit his family's ruthless legacy. However, witnessing the horrors of war leads him to renounce violence and seek a deeper truth. Journeying through perilous lands, he encounters sages, warriors, and divine beings, forging the Path of the Empty Blade—a sword style that ends battles without bloodshed. As war threatens to consume the continent, Baek Yeon must choose: remain a wandering sage or return to the battlefield to break the cycle of suffering forever.