Ah. Slowpoke, slowpoke, slowpoke. Am I always that last person to find everything out? Well as I always say, I can’t be the last to find everything out and hopefully by posting such info, others will come to find out after me. In this case, I find this to be a quite interesting little discovery for god knows what reason. Anywho~
It turns out the group behind the Highschool of the Dead OP was actually a doujin group before doing the OP. They’ve actually done three Touhou albums! I don’t know why this amazes me so much! I’m sure they’re not the first but it seems very… wow! To think a Touhou-centric doujin group would hit it big like that! If you’ll recall, IOSYS did the end for Penguin Girl too. However, that aired on Niconico so it’s less credible.
(The vocalist for the group (including the OP?) was actually on this album (track 8). However, because I’m such a lousy reviewer even I can’t tell what I thought of her vocals)