A matriarchal society in China:
“Why would you want the marriage license to handcuff yourself?” a blunt-spoken Mosuo woman named Cha Cuo asks Zhou. For Mosuo women, it is not an idle question. In their matriarchal society, they do not marry. They practice what they call “walking marriage” in which a woman may invite a man into her hut to spend a “sweet night,” but he must leave by daybreak. If a pregnancy results from this union, the child will be raised by the woman and her family.
“You Han people [the majority Chinese] are so different,” Cha Cuo tells Zhou in the film. “If the kid doesn’t have a father, only a mother, and lives in the city, people would call him a wild child. Who would ever say that here?”