Juniper's Knot is a great little game, really good for a Western release. Love the music.
Still haven't read Narcissu, gosh, how useless…
I'm currently playing Karakara, which is another short one (4-6 hours I think). Light and silly but well-grounded, the tone starts to shift about halfway through. I'm enjoying it and interested to see where it will go. Also fully voice acted + has an option for both English and Japanese subtitles, which is a plus for my language studies.
You can pick it up for a dollar in this week's Humble Bundle along with a bunch of other light distractions. 18+ scenes require a separate purchase on Denpasoft, bought them on sale out of curiosity but I think they detract from the story.