A child born and raised in Sime Territory who at puberty begins the production of selyn.

Children of Sime parents who established suddenly found them self non-people, and rejected by their parents and either handed over to the pens or to a Genfarm where they would be used for breeding and working around the farm. 

Some parents, not being able to bring themselves to these measures would take their child to the border and release them into Wild Gen country. In First Channel, when Kadi established, Syrus Farris sold her to the Auctions to be sold on.