For me this game became a hidden gem. I learnt about it just occasionally and after completing demo I immediately bought a full version.
Perfect thing to play an hour or so before going to sleep.
As for language learning lover that's a real gift. Story is interesting, visual style is perfect. Puzzles are rather tricky. One time closer to the end I had to check playthrough on YouTube to resolve the puzzle.
So totally recommend! I definitely will take a closer look to games like this in future.