Es-N, short for Embryo Storage-New, are Prime Field Interference Manifestations created as Es' successor. Artificial, mindless beings who can only follow orders. What little speech they have is completely robotic, consisting entirely of confirmation of orders and analyses of their situations. They're made with inorganic materials, meaning that they does not show up on any scanners for lifeforms. There are eight of them, and they have a hive-mind, acting as if they were one.