It was a bit dull in my opinion and I feel like nothing much happen except setting up the love polygon between both genders of the main cast, as indicated by the theme song sequences. The thing that stands out besides the character designs and color palette is how the studio executes the glass theme (both visually and figuratively) as well the effect designs, they're really astounding. It is unknown if the glass serves more than just a background excuse in favor of romantic mishaps (which I fear it feels imbalanced if too much), however the characterization was simplistic at most. I'll give a few more episodes to see if it gets better.