I just like MVs and know nothing of the character or where she is from, is it too referential? or can I play it and get the gist of things and enjoy the plot?

If it's true, that's kind of short.

Since they don't bother with regional pricing anymore, they are not worth even a penny.

The demo made the game seem pretty easy, and I see that brought up in many reviews. I'm okay with an easy first playthrough, but I do want a challenge from my Metroidvanias. Inti Creates games are often packed with difficulty variations, and I was wondering if this game follows suit....

Since there isn't anything really useful in guides as far as finding certain materials goes I figured we could all pool our findings here. Post what you're looking for while also hopefully answering someone else's question.