A prosperous and peaceful world was exchanged for Grandmaster Tianxuan's sealing of the King of All Demons, which took place five hundred years ago. The happy days, on the other hand, were short-lived. Demons lurked in the quiet village of Qui Yuan, while cholera made a resurgence in the region. The youthful demon hunters are ready to put their skills to the test in order to safeguard justice and the peace. In the midst of the crowd shines out a young guy named Qian Youdao, who has aspirations of being the best demon hunter in the world. The team, however, discovers a stunning secret as their odd investigation comes to a close....