Wei WuXian decides to use "Empathy" to see A-Qing's memories and the flashback of 10 years ago starts. A-Qing fakes her blindness to gain free food and steal money, and later bumps into a wandering and blind Xiao XingChen to do the same. However, the latter is quick-witted and asks for his money pouch back. But the man she stole from comes back for it too. When he is about to hit A-Qing, Xiao XingChen saves her and gets her to return the money. After the man leaves, A-Qing insists on following Xiao XingChen and the two set off together. On the way, they discover a heavily injured man on the roadside and brings him into a coffin house in Yi City. The man, unknown to them to be Xue Yang, acts as if he does not know Xiao XingChen and allows himself to be taken care of. The next day, Xue Yang uses his candies to test if A-Qing is really blind, and believes so when A-Qing does not react to the sword at her chest. When Xiao XingChen comes back from grocery-shopping, A-Qing tries to warn him of Xue Yang's suspicious actions. But Xiao XingChen is too kind-hearted and also welcomes Xue Yang's help to repair the hut. When Xue Yang follows him to night-hunt, he secretly poisons the innocent and cuts off their tongue to lie to Xiao XingChen, letting the latter kill them. Subsequently, the three has lived with each other for a very long time. 3 years later, Song Lan meets A-Qing while on his search for Xiao XingChen. When A-Qing brings Song Lan to find him, they meet Xue Yang entering the house. Later, Song Lan goes to fight Xue Yang but loses to the poison. Xue Yang also cuts off his tongue and Xiao XingChen appears to finish him off. Song Lan tries to let Xiao XingChen touch the carving on his sword but fails and Xue Yang leaves him to die. The disciples then wake Wei WuXian up from the memories and he goes off to try and kill Xue Yang with Lan WangJi. (Source: Wikipedia)