Another idea I'm real fond of is the idea Reimu cares about fairies, and enjoys company with youkai and others much more than she lets on. It's fun to watch her run around and act super strong, or like she hates youkai, but it seems so much more like she'd get along with them than she would any normal human. Touhou just always seems to fit better when characters act cute and dumb rather than any of the dark interpretations of Gensokyo.