I've just finished the game. It was very, very cute! The idea is simple - meddling the visual novel genre with Picross, puzzles that I am personally a fan of - but so effective!
The discussion between the two protagonists is again cute, and they are quite interesting.
The puzzles themselves are great, except a bonus one that I found a bit confusing, but it is fine as the game doesn't punish you too hard for making mistakes.
Concerning the visuals, I love how you've drawn the characters: those round shapes are perfect with the style of the universe!
In other words, this was a nice little experience, thank you for your hard work!
NB: the translation in French is very good.