I'm going to be brief here. You need to play this game.
It's a visual novel, so if you don't like them, you won't appreciate it. Too bad, you're missing out.
It's free. I'd pay money for it.
It's one of the best games I've played, period. It's rare that a game affects me emotionally, but this one did. Very quickly. And repeatedly. I went from uncomfortable to squee to a miserable wreck in a very short space of time. I played it practically nonstop without breaks until I finished it. It's now 2.30am and I am making this thread right now to let you know:
[color=red][size=30]YOU NEED TO PLAY THIS GAME RIGHT NOW.[/size][/color]
That is all.