The story follows the strongest young hero in history and his best friend, a sage with unparalleled intelligence despite being the weakest. After defeating the Demon Lord, the hero is assassinated, leaving only the sage. Accused of collaborating with the demons, the sage is exiled. Uncovering a plot to assassinate his friend, he secretly gathers his friend's legacy, amassing overwhelming power surpassing even the strongest hero. He seeks revenge on those who framed them and creates a new legend, deceiving the world for his deceased friend.