The Wen Clan's rampage caused untold sufferings, and the other cultivation clans launched the "Sunshot Campaign" to join forces against the Wen Clan. Although Wei Wuxian, the Yiling Patriarch, had made great contributions to overthrowing the Wens, he was stigmatized and punished because he was considered too powerful and dangerous. He was persecuted by ten thousand people.
Thirteen years later, Wei Wuxian has been brought back by a sacrificial ritual and has met again with old acquaintances such as Lan Wangji from the Gusu Lan Clan and Jiang Cheng from the Yunmeng Jiang Clan. The mysteries of Wei Wuxian's past remain, and conflicts in the cultivation world have resurfaced - all of which began from when they were all once youths.
(Source: QQ, translated)
— Description from AniList community (anilist.co).
