O (planet)

A planet in Ursula K. Le Guin's Ekumen universe. O is relatively near Hain about 4 light years. The people of O called ki'O belong to one of two moieties Morning People and Evening People. A child belongs to its mothers moiety. There are strict social rules preventing any kind of sex between members of the same moiety.

A marriage on the planet O is called a sedoretu and consists of four people, a Morning man and woman and Evening man and woman. This results in four pairs which have name. The Morning pair is the Morning woman and the Evening man, the Evening pair is the Evening man and woman, the Day pair is the two women and the Night pair the two men. These four pairs are all expected to have sex with each other. The the people who are of the same moiety are forbidden sex with each other.

Stories Set On O:

• Another Story OR A Fisherman of the Inland Sea
• Mountain Ways
• Unchosen Love