According to established practice, other than the partners of Sandy and Maya, every member of the Saint Nazaire tribe should follow the females who participate in the beauty pageant. One on hand, it is to protect the prettiest females in the tribe, and on the other, it is to prevent females from being brought away if they chance upon someone that they like.
However, the situation now is rather special. None of the males who followed along had any intention to change their tribes, but they all had the goal to use their lives to guard Gu Mengmeng's.
Originally, only 130 people had tribes, but over 40 were lost in an instant due to Nina. Although there were no signs of mating and they did not have to die even if Nina did, but to them, no matter what kind of female Nina was, she was their love for eternity. After Nina's death, they sealed Nina's cave and buried themselves alive in it.