Though I'm loathe to admit it, this game was actually really cute, and full of a couple pretty big moods, though it was a bit disappointing in a lot of aspects. Aside from the protagonist's little "piss crush" there isn't really any direct yuri here. It was cute, and the scenes are pretty cute/hot if you're into pee, but it never quite feels like it goes far enough, at least for me. When I downloaded this I was really hoping it'd be more like a couple sneaky embarrassed/exhibitionisty scenes, slowly mixing into awkward yuri, culminating in the main character getting caught by her love interest and them going on to have a relationship, maybe with some sort of actual scenes with them together where the protagonist isn't trying to hide things anymore in an epilogue or something? But I guess I got my hopes up a bit too high, which led to me being disappointed.
Overall, still rather cute and worth a read/play if you think you'd like it, but pretty short and a little unfulfilling.