First pressing comes with "another jacket," which is actually the Gargoyle drawn by Saitou Chiwa. You can actually see the video of her and the other two voice actresses drawing them on the "Introduction DVD" (BIBA-6610). I wanted to show the drawings, but at the same time, didn't want to, so I ended up putting up a tiny version of it.
Futaba's song is almost too cheerful, but that fits her character very well. And Saitou-san sings both songs well.