character: patchouli_knowledge, character: koakuma, character: rumia, medium shot, 3/4 view. Inside the grand library of the Scarlet Devil Mansion, Rumia stands in the middle-left foreground, looking up in awe at towering bookshelves with her mouth slightly open and one hand pointing upward. Beside her, Koakuma floats with bat wings spread, gesturing with one hand toward the shelves and wearing a knowledgeable smile; she is dressed in a white shirt, black vest, and red necktie. In the distant background on the right, Patchouli sits at a massive wooden desk piled with grimoires, her long purple hair cascading down as she reads a thick spellbook with a focused expression, wearing her signature striped dress and mob cap. The environment features endless rows of books, polished wooden floors, and is illuminated by warm candlelight and floating magical orbs that cast dancing shadows. The visual style is a traditional croquis aesthetic, resembling a colored pencil sketchbook with visible textured paper grain, soft sketchy strokes, and warm muted tones creating a cozy, mysterious atmosphere.
