Journeying through a quiet rural landscape, Wei Wuxian and Lan Wangji stumble upon a stone marker bearing the name 'Yi City.' Their pursuit to solve the enigma surrounding a cursed severed arm leads them to this abandoned town in search of answers. Amidst their investigation, a mysterious new cultivator emerges, entangling them in a perilous scheme that jeopardizes the realm of cultivation. Matters intensify as they uncover the involvement of Jin Guangyao, the esteemed chief cultivator of Lanling Jin Sect. As they unravel intricate conspiracies from the past, suspicions arise among their allies, challenging Wei Wuxian to defy accusations of dark sorcery, earn back trust, and combat the malevolent forces threatening the cultivation order.