Under the hustle and bustle of the bustling city, there is an unknown world. Since the founding of the People's Republic of China, the rumors of "not being allowed to become spirits" are not groundless. In fact, the strong suppression of the country's fate has caused those spirits who have successfully cultivated to stay in seclusion and not dare to show their faces easily. In human society, there are also a group of strong people who have formed the Bureau of Strange Affairs, which specializes in dealing with supernatural incidents among the people and guarding the peace of ordinary people.