Danmaku Plothole?

[Myschi]

Also not an expert on PoDD (or any of the 98 games, really), but didn't Yumemi come to Gensokyo because she was being laughed at back home for believing in magic? If that's the case I'd think she made/found spellcards herself and no one else wanted to have anything to do with them.

Bolded for emphasis. How could I forget about her magic bit?! That actually makes perfect sense if she designed - for lack of a better word - prototype spellcards, which Reimu (or, whoever, really) refined and then our favorite miko wrote the rules for.

... does that still somehow explain how Byakuren got them, though?

[Esoterica]

Also not an expert on PoDD (or any of the 98 games, really), but didn't Yumemi come to Gensokyo because she was being laughed at back home for believing in magic? If that's the case I'd think she made/found spellcards herself and no one else wanted to have anything to do with them.

Or maybe she found the spellcards in Gensokyo in the future and when she came back she brought them with her. Cue self-resolving time paradox.

She says something in her dialogue with either Reimu or Mima about her magic not being real magic, but something to do with...light photons or something like that.   Given that she uses SCIENCE and not magic, I think it's safe to say she didn't invent spellcards.

[Blackraptor]

She says something in her dialogue with either Reimu or Mima about her magic not being real magic, but something to do with...light photons or something like that.   Given that she uses SCIENCE and not magic, I think it's safe to say she didn't invent spellcards.

But Reimu thought that it was a really good idea and decided to jack it.

Also, we don't know nearly as much about Gensokyo's pre-PC-98 history to say that Reimu was actually the one who invented the whole concept. Gensokyo should have been destroyed hundreds of times over the past ~1500 years if Youkai of Yuka, Yukari, the 4 Devas and whatnot running around, Hakurei clan or no. The previous generations of miko/priests had to have set something up to resolve incidents without ending up having to kill eveything all the time.

Then again...Reimu is the last one left...

[Hello Purvis]

Just because any one of them could have caused mass devastation doesn't mean they would have. They do keep all their stuff there, after all. And I am pretty sure humans are the only ones who farm; aside maybe from the kappa.

[Ayuka]

Just because any one of them could have caused mass devastation doesn't mean they would have. They do keep all their stuff there, after all.

Just dropping this by.

[Hello Purvis]

Just dropping this by.

I've been using this for almost a decade. You're the first one to figure it out.

GOOD WORK, SOLDIER!