I just played Narcissu and I must admit, it was pretty awesome. It was Shana that made me download it and play it through and she definitely has good taste in Visual Novels.
8 chapters long and took me around an hour to get through it while Shana got through it in half an hour or so. The plot was creative, artwork was pretty alright, voice acting was great and soundtrack is amazing. Ending was sad and it even got Shana depressed, rofl.
I'm surprised that it was good even though this full VN is free. I'd've spoiled the ending but I'll leave it up to you guys to find out. It doesn't take very long to get through anyways unless you read very slowly.