I have read the manga. It's mediocre. But what made this movie way better than the manga is its visuals. When a manga is adapted into an anime, you lose some parts of the story. But sometimes sacrifices are necessary in order to enhance the visuals. Sometimes the story would even portray better with better visuals. And apparently, Fragtime falls into that category for me.
I could tell already that this might become a hidden gem like Asagao to Kase-san. Damn, I really hope this movie blows up because it's actually pretty good. I really do.
If you're looking for another Shoujo Ai to watch then you must put this in your PTW list. It is worth seeing and it shouldn't be ignored.
