I regret continuing using the previews for the next eps as the discussion, but its there the really interesting things are said. They say so much that it tend to eclipse whatever happened in the eps itself. (Just let me know if you'd rather I not talk about what's said in the preview)

So Honoka's azure eye signifies that she failed to become a Third, and that's why she's on the planet instead of wherever exactly they are. It also said she never knew who her parents were because of that. So this makes me wonder if the Third who came down to hassle her with the white units is more than just interested in her solely out of curiosity.