Lan Wangji

Lan Wangji is a cultivator of the Gusu Lan clan and one of the central figures in The Master of Diabolism. Known for strict discipline and exceptional skill, he becomes Wei Wuxian's steadfast ally across two lifetimes.

Lan Wangji of the Gusu Lan clan

Reserved, principled, and emotionally restrained, Lan Wangji initially appears inflexible. His devotion to Wei Wuxian leads him to challenge clan rules, protect the unjustly condemned, and endure punishment.

Bichen, spiritual music, and devotion to Wei Wuxian

Lan Wangji fights with the sword Bichen and the guqin Wangji, using music for spiritual inquiry and combat. His relationship with Wei Wuxian develops from rivalry to trust and love, while his care for Lan Sizhui links him to the surviving Wen remnants.