Mo Dao Zu Shi, also known as "Grandmaster of Demonic Cultivation," is a popular Chinese web novel written by Mo Xiang Tong Xiu. It follows the story of Wei Wuxian, a talented cultivator who becomes a controversial figure after mastering forbidden techniques. The narrative explores themes of friendship, loyalty, and the struggle between good and evil. Set in a richly developed fantasy world, the story features various clans and sects, each with unique abilities and philosophies. As Wei Wuxian navigates his past and present, he encounters Lan Wangji, a principled cultivator who becomes his ally. The novel has inspired adaptations, including an animated series and a live-action drama.