"Dart Man" Lao Mo was killed by and Ixuan, Lao Mo is the head of the Mo family in the five families of Hu merchants, he has been neutral in the western region, and maintain trade with all parties. Old Mo and Blade Horse were good friends, and later it was also Old Mo who asked Blade Horse to escort Zhi Shilang to Chang'an, and after Blade Horse and the others left, Old Mo was killed by He Yixuan.

Kazu Ikki is from the Kazu family, one of the five great families of the Hu merchants, and he is the ruler of the Kazu family. Kazu Ikki is ruthless, and he can kill his own Ata with his own hands for the sake of power, and he also has a strong possessive desire for Ayuya, the daughter of the old Mo. He Yixuan is a person who can do whatever it takes to achieve his goal. He listened to Pei Shihu's words and wanted to unify the five great families of Hu merchants and then set up a western domain vassal state.

So he united with the Spitfire mercenaries and the rest of the Hu merchant clans to hunt down Zhi Shilang, and also killed Lao Mo, and in the end, He Yixuan was killed by Ayuya, who knew of his father's death, and he deserved it, except that we all felt more sorry for Lao Mo's death, as Lao Mo, though he was not a protagonist, was also loved by many people.