|Image from CDJapan|
Update: The standard cover has now been revealed. I was wrong about it being Shizuka, but it is Rei, so I was still right. I won't bother posting an image now as I'll be scanning it in a few days. By the way, theres a volume being released for Highschool of the Head (one of the series in the Secret Box) that I'll probably be buying. I may scan it and post towards the end of the summer, but it's very low on my list of priorities.