The Coa-Jarii are the inhabitants of Canad one of the three worlds in the Isaar System which make up the Jarii Coalition. Along with the Saan Jarii and Jzung Jarii, the Coa were originally condemned prisoners left on a penal colony.
the Isaar system was the dumping grounds for the Federation's unwanted criminals. Many of them were violent criminals, deemed unrehabilitable by the system. Quite a bit were politicals that the government found either embarrassing or potentially dangerous. They were all dumped on the planets with a minimum of food, virtually no supplies, and whatever they could salvage from the rather minimal equipment of the shuttle pods they were dropped in.
There's not a lot of written documentation from the first couple of decades, but oral histories, folk-tales, and the little bit of existing documentation show that Canad, at least, was a rather rough and lawless place to live on.
Over the first fifty years or so, though, a set of rules developed; a code of conduct or honor actually. There is virtually nothing you can say to a Coa to get him angry. They exchange scathing insults they way we do kind greetings. The exception is a man's wife. Any kind of attack or insult on a woman evokes an immediate and violent response from her mate—and a majority of the other men in the room. The punishment is almost always death.
But there's a price. The Coa call it nara. Any may who kills a woman's husband—either fully recognized or common-law—must take that woman into his home and treat her as his own wife for a period of a season and a day. Sex is not part of the bargain—unless the widow chooses so, of course. But the man must support the woman, care for any children, assume the responsibilities of the husband.
Women do everything that men do. In the early years of the colonies, it was vital that every person did their share of the work. Women, however, were a minority. The men quickly realized that certain rules had to be established. Women hold a special place in the hierarchy.
Things, however, are changing. The population has balanced out in the last few hundred years, and several political groups are trying to change the way things work. Many men are angry because of the special privileges that women get—especially in the legal system and in politics. And there's a growing women's movement which finds these same privileges, along with such traditions as nara, to be demeaning to women in general. The next 10 to 20 years should see some drastic changes.