curse the manga-display-mode images on pixiv, it makes me miss out on so much stuff. Was trying to find the source of this particular image and by sheer luck found it among 31 other 502nd images, all hidden behind a tiny sketch as the cover image, which I almost just passed over.

well....that's certainly not something i was expecting from Naoe. I wouldnt be surprised if Waltrud was giving them a secret thumbs up off image. ^^