Seven people go on a trip together as a couple. What are the rules in Feng Shui?

The first theory: Zhong Kui marries his sister to seven people, and the ghost wants women to sit in sedans, four to carry the coffin, two to hold the lamp, and one Zhong Kui, but one of the seven people must be a female to marry his sister, otherwise there is no taboo

The second theory: Seven men together are called the Seven Ghosts to see them off, four carry the coffin, two are black and white, and one leads the way. It is also called the Seven Ghosts Walking Together