Please keep in mind that the expected result of 3000 Jewels is... absolutely nothing.Technically yes, but never, EVER do this.... do not underestimate greed. While Nutaku doesn't want Kamihime to go away, for all we know DMM might take Kamihime servers down today, even. Because why pay a middleman like Nutaku when you can... well, not a pay a middleman? They already set things up for that with the release of DMM English Kamihime.
So, don't spend that money if you're not willing to see it just go poof in a single second. That is a very real risk when it comes to online games such as these.