There were different theories about whether the Black and White Ghosts would appear during the day. There was a saying that the Black and White Ghosts did not only appear at night. If someone died during the day, they would also appear. Another theory was that the White Impermanence moved during the day and the Black Impermanence moved at night. However, there were also people who said that the Black and White Ghosts were just folk legends. The ones who really came to pick us up were guides, possibly our friends and relatives. Since there was no clear answer in the information provided, I was unable to determine whether the Black and White Ghosts would appear during the day.
The Black and White Ghosts not only appeared at night, but also during the day. Although it was generally believed that the Black Impermanence was active at night and the White Impermanence was active during the day, in fact, they were not afraid of the sun. Their mission was to capture people at fixed locations, not patrol, so there was no difference between day and night. Therefore, the Black and White Ghosts would also go out during the day.
Well, it could be a story related to White Day. Maybe it's about a romantic encounter that takes place on White Day. It might involve a couple, and their special moments during this day which is often about reciprocating love shown on Valentine's Day.
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.
There were many versions of the story of the Black and White Ghosts, but the most common story was that they were originally a pair of good brothers, named Fan Wujiu and Xie Bian. They lived in an ordinary village and were like brothers since they were young. One day, they went out to do some work and walked under a bridge. The sky was gray and it was about to rain heavily. White Impermanence wanted to go back and get the umbrella, so he asked Black Impermanence to wait under the bridge. After White Impermanence left, it started to rain heavily and the river started to rise. Black Impermanence didn't choose to leave. Instead, he continued to wait. When White Impermanence returned, he couldn't find Black Impermanence. White Impermanence watched his good brother being washed away by the flood and chose to hang himself on the bridge pillar. After the two of them died, they went to the King of Hell. In this story, the Black and White Ghosts were given this name by the King of Hell because of their loyalty and faith, and they became the great gods of the Underworld.
Seeing the Black and White Impermanence was a legendary phenomenon. According to different theories, it might have different meanings and omens. Seeing the Black and White Ghosts in a dream could mean that they might encounter difficulties or troubles recently, or even life-threatening. For married women and working women, this may mean that they face some restrictions or pressure in work or interpersonal relationships. For unmarried women, dreaming of the Black and White Ghosts pursuing them might mean that their family would interfere with their emotional life and might be arranged for a blind date. However, these explanations were based on superstition and folklore, and there was no scientific basis to prove their accuracy. Therefore, there was no clear conclusion as to the true meaning of seeing the Black and White Ghosts.
The identities of the Black and White Ghosts were different in different versions of the story. Some people believed that the Black and White Ghosts were brothers, while others believed that they were lovers. However, there was not enough evidence to determine their true relationship. Therefore, based on the information provided, it was impossible to determine if the Black and White Ghosts were siblings.
The origins of the Black and White Ghosts were said to be in many legends. The most well-known version was that the Black and White Ghosts were originally sworn brothers in the human world, named Fan Wujiu and Xie Bi 'an. Fan Wujiu was a prodigal in his previous life. After he accidentally fell to his death, he went to hell and was punished. Later, he repented and was released back to the human world to be reincarnated. He was reincarnated into a poor family and was named Fan Wujiu. Even though his life was bitter, he had a chivalrous heart and liked to avenge others. Xie Bi 'an and Fan Wujiu were good friends. One day, they met with an accident under Nantai Bridge, causing Fan Wujiu to drown to death while Xie Bi' an committed suicide on the bridge. Because of their loyalty, the King of Hell ordered them to arrest the criminals in front of the Shing Wong. This was a common saying about the origins of the Black and White Ghosts.