This photo shows the Scarlet Devil Mansion, home to the Scarlet Devil herself. Many things are unknown about the mansion, but there's almost certainly a large hall of some sort close to the entrance. However, the head maid can supposedly use her ability to change the layout of the mansion in the blink of an eye. Perhaps the mansion simply doesn't have a fixed floor plan.

Excerpt from R's report: "It's design is Western... That's about all I can say. It looks like a building from England or Rome... with some Middle Eastern elements mixed in there, too. Overall, I'd guess you'd say it looks British, though. As someone from Japan, I can understand an island nation's desire to acquire things from across the sea. That said... this mansion is remarkably scarlet."

Excerpt from M's report: "I ate cookies here in a dream I had once. I remember the tea being delicious. Who was it that gave them to me again...? All I remember is that she was a maid. I wonder if she still works here."

Excerpt from R's report: "I don't know why, but I can't get Mokele-mbembe, the Congo Dragon, out of my head. All I know is that this mansion looks like it's been stained in blood, and it makes me think of vampires. The best-known vampire is Dracula... which means "son of the Dragon." But perhaps I'm seeing connections that aren't there."

Excerpt from M's report: "In my dream, I asked the maid if I could say hello to her master. But... I don't remember doing so. I wonder if I managed to find her. All I remember is that the maid wrapped up some of those yummy cookies for me to take home."