Steeped in violence and surrounded by death, Yan Wushi has abandoned faith in humanity's capacity for good. He refuses to believe in the existence of someone truly virtuous—one possessed of genuine compassion and unwavering justice who would aid others without seeking reward. Fate intervenes when Shen Qiao, leader of the supreme Mount Xuandu Daoist sect, is driven into a duel and mysteriously tumbles from a cliff. By chance, Yan Wushi arrives at the scene to find the mortally wounded sect leader below. As death creeps near, a singular opportunity presents itself. Across the span of countless autumns, what endures forever?