To keep this short, Wonderful Days is a story of the degradation of the world, mainly the sky. The main characters involve a love triangle with a very, very, VERY emotional resolution. I can see where this movie garnered some hate, there are many points where the 3d felt out of sync with the 2d animation, and they do this weird light stroke on the characters, which was honestly jarring at first, but after a few moments of breath-taking immersion, I had completely forgotten. Even with its flaws, I would claim Wonderful Days to be one of my favorites. If you like thinking of thefuture and facing harsh realities, then this is for you.