Shen Jingci was born with the ability to commune with spirits and see ghosts and gods. One night, the living souls of everyone in her village are snatched away by a mysterious force, leaving behind only living husks. Determined to reclaim her loved ones' souls, Shen Jingci uses her innate spiritual abilities to force her way into the underworld. There, she crosses paths with Xuanye, an impartial judge who upholds the law. He brands her a “soul disruptor” for disturbing the balance between yin and yang. To stay in the underworld and investigate the truth, Shen Jingci uses her quick wits and unique sensitivity to souls to disguise her identity and land a low-level job as a spirit runner through the underworld's perilous civil service exams. While matching wits with her sworn enemy Xuanye in a relationship full of love and hate, she digs deeper and uncovers a vast conspiracy: powerful figures in the underworld are plotting to overturn reincarnation and seize control of the mortal realm. The heroine has neither a System nor a golden finger in the form of magical artifacts. Her exceptional insight into the nature of souls and her innate empathy set her apart. She can soothe the most savage ghosts and see through the most hypocritical gods. In the end, with her intelligence and perseverance, she joins forces with Xuanye and rises from a lowly spirit runner to set things right and restore order to the underworld.