The Ben-Cin (pronounced Ben-Kin, not Ben-Sin) were the earliest inhabitants of Karr. They were culturally very close to the Aiyu of Juturia. They arrived from Juturia by boat at some time in the unrecorded past. Like most of the Aiyu, the Ben-Cin were illiterate people who knew neither metalworking nor any significant amount of agriculture. They fished in the seas around Knarr, and hunted and gathered in the forests. They appear to have brought a domesticated form of Wada with them. The animals were used in hunting, and eventually went feral.