I thought of that, but at the same time, even if it's totally referencing Gardevoir, it's kinda just not Gardevoir. Green and not the same kind of dress, similar hair shape, crystal is just a necklace with a crystal. "What, you're gonna sue me over a color scheme?"
My admittedly bad joke is based on "say gex" where you swap the first letters (edit: and an incorrect assumption that the phrase came earlier than gex alone. I don't remember when I first saw "say gex"; I thought that was forever ago).
Also ackchyually you're thinking of portmanteau rather than...
Excuse me for asking, but where in which chapter(s) are Xiao Hua / Rosette mentioned? Is it just the monster flower thing gifted to him earlier in the series? Because I don't remember this name at all.
Sorry for nerding but page 6 broke my immersion. I realize if a girl tilts her pelvis forward then the rear of the skirt will lift a bit, but this frame is also drawn like she moved quickly in a low gravity environment to cause the hemline to float when it wasn't previously portrayed as a poofy...