I was so glad to see the more realistic pace of the relationship in your story. Because of the short nature of these novels, many seem to have gone from zero to a hundred in the course of a few minutes!
I loved all the modded sprites, and the artwork you made with the characters on the title screen and again at the end of the vn. Matching someone else's style almost seamlessly is not an easy thing to do!
The one aspect that felt a bit out of place to me was the drastic style shift of the music playing during the concert; the first and second songs were from rather different genres, though it may have been the intention, and referencing something I'm personally not familiar with. It was just a minor point, though, and only mentioned because there's not much I can be critical of in the story.
I liked your writing style, and can't wait to see what else you come up with!