In a turbulent world of martial heroes, a lifelong confidant leaves one with regrets.
Far away in the south, the eldest young master of the Li family is thrown into prison. The daughter of the Li family patriarch makes a long and arduous journey by boat, seeking the peerless young master hidden away on Mount Zhongnan. But she is ambushed upon arrival. At the critical moment, she is rescued by a young man who has come to seek the young master's tutelage, and she joins him on his journey.
Because the peerless young master owes the Li family a debt of gratitude, he agrees to come out of seclusion. Taking along the boy who keeps pestering him to become his disciple, he sets out to investigate the Li family's wrongful case. Along the way, he treads warily as he encounters both a kindred spirit and an enemy bent on killing him.