Lily is such a wonderful character. I enjoyed reading her conversations with the protagonist a lot. As for the story itself, it's sad, melancholic, and sentimental. I had tears in my eyes while reading some scenes. The artwork and the music are very beautiful.
P.S. I wonder how many people were able to figure out the protagonist's name? It's never mentioned in the story, but he is implied to be a certain person's namesake.