I don’t think it does. It’s more like a BGM to me since it has no vocals, there’s not even an ED for Planetarian. It’s more like Planetarian’s theme, like how The Theme Of SSS is Angel Beats’s theme. I honestly have to go with Rewrite, every time I listen and watch the animated video, it just gives me the feeling of how good the anime would be ;D Even if it the anime storyline butchers stuff. I honestly think the “Boys be smile” is the worse song in my opinion. It just doesn’t have that Key “magic” vibe to it. Let’s all be real though. WHY NO LOVE FOR LIGHT COLORS ??? That was such a beautiful song, not to mention the piano version of it is beautiful. Anyways, where’s the ED competition now ? I’m pretty sure Dango would win. Just saying. Seems pretty obvious since everyone fell in love with that song, and DEM PLUSHIES IN THE ANIME 
Also, where’s the Kanon 2002 Op ? (Even though it wasn’t good), it should still be on there.
