Lin Feng is an ordinary soul-reaping messenger in the Underworld who faces dismissal due to his poor performance. By chance, he enters a mysterious and terrifying instance, where he discovers a vast amount of evil forces threatening the human world. Drawing on his professional expertise, he uses righteous methods to subdue supernatural entities and purify the instances. In doing so, he not only protects humanity but also fulfills his job duties. Thanks to his outstanding performance, Lin Feng continues to rise through the ranks, eventually becoming an Underworld Judge and safeguarding peace between the two realms through his sense of responsibility and dedication.