This is going to be short and simple. Stop being a critic. Enjoy the anime. This story is actually very good compared to most standalones that dont have a huge budget or super sponsoring or a big company behind them. It is a short movie but the overall animation quality is just as good as any normal big budget animes, especially when the big companies lose funds in the middle of the anime and skimp on the quality. This was well rounded with comedy, cute characters, and good action. It just needs more time. The main thing is we need a two season main story. The beforethe current world where they can have their action adventure in their time in all its glory, then the current one and finishing to them going back in the second season. it would be plenty of time to get out all the story, inject the humor, and then finish with a bang like they did this movie. We dont sit here watching animes to be a critic. otherwise we wouldnt enjoy them like this, if you want to you will like this. Its worth your time.