Transmigrator Nan Feiyan establishes himself in Qin through his expertise in psychology. He first foils a conspiracy at Xianyang’s Heart-Locking Gate and exposes Qin prince Cheng Jiao, who has dissociative identity disorder, as the sect leader. Later, he ventures deep into the Mount Li Mausoleum, uncovers a large-scale mind-control operation targeting convicts, and exposes the hidden collusion between Qin and Chu. He and Lü Qingque unravel the tangled mystery of their origins. Using psychological tactics, he thwarts Cheng Jiao’s mad scheme and, as the emperor’s mentor, binds his personal schemes closely to the fate of Qin, safeguarding the empire’s stability.
