This is one of those lil cute anime you find and keep watching , tbh it resembles the movie a lot with all the different and vivid colors used and having only 6 episodes (the movie was 1hr long).The overall story is more or less the same , some may call it cliche but it is a good and fun cliche (I mean it) and if you are wondering if you need to watch the movie prior to this I must say that although it would help a lot with the character development (movies main characters have supporting roles in here and vice versa) but it is not necessary as it has it's own story. The most unique aspects of the show is its being short and the eye catching art it has , I bet no one would get bored of it if it is this long which I think is a positive thing for an anime like this , the overall sounding is done pretty good too it won't tire you throughout the show and the OP and ED are both above average.
If you're looking for something cute and casual that won't take much of your time and help you relax , this is the anime for you.