I like the symbol she has on the chest. It seams to be telling that Newmen have some connection with Espers (or Lutz) - at least initially - but, through the times, that link was forgotten.

While the first ones look like a star (algol) surrounded by three balls (planets), the last ones look like a feminine version of it (an uterus with a heart above and two drops under it -- Rika's drops are inverted). And I never noticed the symbol used by the current Espers (e.g. Kyra) are slightly different from the one Lutz/Rune uses.
Anyway, all of them (newmen and espers) have that Algolian-Star Symbol on the chest. Was Lutz behind the creation of a superhuman to defeat Dark Force, like he did with all those super "nei" weapons? All we know is that "nei" is a word of their power.