I have to echo the previous commentors on playing this game waaaay too late due to downloading multiple demos at that time and having other video games to play. It got kinda buried in my VN download folder and now I'm in the process of playing them all.
I don't think I've felt so close to a main character like ever. I'm smell/scent person. The idea of incorporating smell as a vehicle to tell a story or describe things, people, feelings is just so wonderful and it is executed perfectly. Add to it leaving out music which occupies another of our senses is almost done of purpose. It's like the reader has to completely focus on the scents that were described to imagine them by themselves, cutting out something as music that is often used to describe things, ideas or emotions.
This is not a bad thing, for it never bugged me and the atmospheric sound effect were more then enough. The team did a really good job at picking them. The writing is wonderful. Just like it should be. No unnecessary noise, scenes that go nowhere, no stupid exposition dump, characters that are given live with just a few lines.
All in all every piece that makes up a visual novel is being put together in an immaculate way. The art direction (art style, colors, visual cues to the reader), atmospheric sounds, writing and world-building fits so well together, giving this game a highly polished sheen. There's supernatural and then we have this lovely supernatural.
I don't think it would have been this good if it weren't for the dedication of the background artist. The backgrounds were really important in creating this world and the scenes. The dream shifter sequence background pictures were really cool.
I have to mention that Laurent is absolutely lovely! I don't think I remember when the last time was that I hang on every word of a LI this much. The way his smell is described is delicious and gorgeous.