Story-wise, everything is written in pastel tones with small areas of bright color to add accents. I think, it suits the mood of the anime well, and provides audience with a clear view at what is important in the anime.
The important things are in line with the genre: friendship and love, pursuit of the goals, growing up. But these important things are shown in somewhat unusual way, with some magic involved in everyday life (but not too much), so it makes all the world of difference.
The romance part of the anime will stir some feelings inside of you, but not in a way, that you feel like a wretch the whole day afterwards. I would say, that this part is quite gentle, like the anime itself. More like something to think about, but not to dwell too much.
If you would like a monochrome slice of life with a bit of magic in it, don't look any further, it gently landed in your hands like a feather, and will probably be swept away from your mind like a feather too.
