Character settings and summary of events:
Xiang Wanyi: The master of "Yi Pavilion" has vicious methods, both good and evil. Invited to board the "Netherworld", the death journey at sea made him and Gu Yuan live and die together for a time.
Gu Yuan: The young son of the Gu family in Sichuan. The family business is huge. His uncle Gu Song (father Gu Tao) is a knight supported by the right way. He is the best in the world with his "Wu Nian Palm". Gu Yuan boarded the "Netherworld" on behalf of the Gu family and treated Xiang Wanyi as a friend. After returning from the sea, he escaped because of Xiang Wanyi's confession. Later, he rescued Xiang Wanyi when he was attacked and in danger. The two fled to southern Xinjiang together and got involved in the struggle between the Miao people.
Ouyang: The eldest son of the Ou family, one of the four great aristocratic families. Friend Gu Yuan.
Mu Ling'er: Hei Miao's "living human poison". The 22-year-old Ling'er only has the appearance of a six or seven-year-old girl. She is the center of the whirlpool of the struggle between Black and White Miao. Because of her love for Xiang Wan, she deliberately poisoned her body. After following him to Shu, Xiang Wanyi was almost killed by someone who took advantage of him. He couldn't bear it, so he self-destructed and was poisoned, and died in a foreign land.