I'm watching this anime cause of the beautiful music. The anime itself is rather confusing for me cause I don't know the background story, but I really want you to watch this video.
I love how they take their time showing the snow, giving you a winter feeling. The crisping snow when the boy walks. Then the song starts and you see that it's spring. It gave me a great feeling, for some reason. Watch it till 3:50. If you're inpatient watch the video from about 2 minutes, that's where the music starts.