Modern cities have experienced a resurgence of weirdness due to the "Mutation in the Mausoleum of the First Emperor" a hundred years ago. Monsters follow specific killing rules (such as the "delivery monster" that knocks on the door at night, and the "mirror monster" that requires covering the mirror). Humanity has established the "Federal Bureau of Supernatural Powers" to fight against it. The male protagonist Qing Mo awakens the "Book of War" due to his family's bloodline, and can summon the heroic spirits of the Three Kingdoms to possess him, but each summoning requires a lifespan, and the heroic spirits may carry strange curses. Where will the Ghost Post Office and the Federal Bureau of Supernatural Powers go from here?
