Also tossing this one in.
I just really like the sound and the instrumentals. Not sure how else to describe why I like it. It's a game ending song, but I've only seen the short anime based off the first game- which is apparently a dating sim game. It's kind of a strange story that deals with the main character who goes to an all boys school. Except they're changing it so that an all girls school is sending their students there for a semester. And out of nowhere this girl, Midori, shows up and wants to be his girlfriend. Because apparently it turns out that in a past life they loved each other but were cursed to forever be apart. He doesn't remember at all but she does and she actually came through time and space to be with him. Stuff happens and I don't really remember much besides that and the ending, which I won't spoil. Oh, and finding this song. So enjoy and such.
Edit: eh, I liked the ending song too, so here ya go.