The Black and White Impermanences were a pair of gods in traditional China culture, and they were also the most famous reapers. They were handcuffed and shackled. They were specialized in capturing ghosts and helping to reward good and punish evil. They were also often the subordinates of Hades, City God, Emperor Dongyue, and other underworld gods. The White Impermanence was called Xie Bi 'an, known as the Seventh Master, while the Black Impermanence was called Fan Wujiu, known as the Eighth Master. Their job was to guide the souls of the dead to the netherworld, and they were responsible for the duties of the Soulbringers. Their image and duties varied in different legends and myths, but in general, they were the messengers of the underworld, responsible for dealing with matters related to death.
The Black and White Impermanences were a pair of gods in traditional China culture, and they were also the most famous reapers. Their job was to hold fetters and handcuffs in their hands. They were specialized in capturing ghosts and assisting in rewarding good and punishing evil. They were also often the subordinates of Hades, City God, Emperor Dongyue, and other underworld gods. They were responsible for capturing souls, taking the lives of living people, turning them into dead people, and bringing their souls to the netherworld to be dealt with. Their duties were similar to the yamen runners in the ancient government offices. They were the basic staff of the netherworld. In general, the Black and White Ghosts were messengers or servants responsible for guiding the souls of the dead to the netherworld.
The Black and White Ghosts didn't mention the specific method of capturing ghosts. Therefore, I don't know how the Black and White Ghosts catch ghosts.
The Black and White Impermanences were a pair of gods in traditional China culture, and they were also the most famous reapers. They held shackles and handcuffs, specialized in capturing ghosts, assisting in rewarding good and punishing evil, and were responsible for bringing people's souls to hell. Among them, Black Impermanence was fully dressed in black, while White Impermanence was fully dressed in white. Their names were Fan Wujiu and Xie Bian. The Black and White Impermanences weren't called Black Impermanence and White Impermanence because of the difference in skin color or clothing color. It was because black represented yin and white represented yang. Their image and duties were related to the theory of Yin and Yang. In folk tales, they were described as the tall, thin, pale-faced White Impermanence and the fierce-looking, short Black Impermanence. Their appearances and names might be different in different regions, but they all represented the difference between yin and yang and the existence of souls after death.
The Black and White Impermanences were nicknamed the Soul Guide.