Didn't spot this pool 'til right before going to bed tonight. I'll try tackling the rest tomorrow, but at the very least, Remilia's letter on the last page is pretty faint at this sample-image resolution, so I don't hold much hope of being able to read it. Here's hoping higher-res versions become available soon.
VWFFOrganization.BFFN-...no, I live underground, not on the surface.Deep down below.HWUGH!!?Hey, hey! I hear you live on the surface!VWIPUnderground.VWFFUnderground!...but it's not really an organi-...It's an underground organization!!!An underground organization!!?Boss and MinionsIs that true!!?THUFFWell, a lot of different people live there...YIIIGH!!?JumpYIIIGH!!!They're making like Kamen Rider Shocker minions, since Shocker is an "underground organization"...YIIIGH!!!SWFF