I thought she was looking for "The Greens," aka that place we reincarnated, but now it sounds like Greens are an item or creature. Possibly Illborn?
Also, we're wrong about the Soul Star identification. I think we've got Ciro, Ritlia, and Proxxy down cold, which leaves Triangle-Sinful and Hammer-Oric as the weakest links. The only other theory I've got is Hammer-Sinful (Hammer is the Thief, Oric possesses it now but the symbol he stole from Sinful could be the one he represents with now,) but that leaves Triangle as... Oric? There's no real justification for that other than process of elimination, and it begs the question of why Oric would leave his own Soul Star in the possession of a random Illborn (even if it is the Chief.) Not to mention the Chief basically gave it away for nothing.
Well, I suppose that's not my
only other theory- the other one involves the premise that Ritlia does
not own the hexagon one, and it instead belongs to whoever the shadowy figure was in that cutaway while she was transforming into a monster (either Oric or his funny-haired lackey there.) This theory rests on the premise that the transformation was not Ritlia's doing, but instead an external agency that basically "possessed" her, but that's pretty shaky stacked up against our main theory. Not only does it not have any circumstantial evidence to back it up, it involves radically rethinking other Soul Stars (essentially adding another step to the previous speculation.)
tl;dr WHAT IS HAPPENING I DON'T EVEN. We need to find some evidence that contradicts one of our established theories.