In modern cities, there are unknown worlds of Taoist alchemists and evil spirits.
Evil things that are invisible to ordinary people harm the world in various ways. The alchemist Zhang Qingyuan has a lineage that has been passed down for thousands of years. He uses talismans, magic weapons, spells and other means to subdue demons and eliminate demons and maintain the balance of yin and yang.
Lin Xiaoxia was originally just an ordinary doctor in the hospital. When she met Zhang Qingyuan, her whole life changed.
