Lin Xiaoqing: A trainee police officer who has just graduated from college. He has a ghost-killing physique. He is cute, kind and good at fighting. Li Du: A soul-wading person with a mysterious mission. He walks around the world. He wears a sword for many years. He is taciturn. When it comes to collecting souls, I only obey Miss Li Du! A strange Internet murder case brings together two parallel lines that never intersect. A cold-blooded spirit warrior with a mysterious mission meets Hua Lidu, a silly trainee policeman who is amused. "I have crossed countless souls, but I don't know how to cross myself until I meet you." Lin Xiaoqing: "I know, I will not be afraid when I am with Li Du."