One relatively-important suggestion, and one bit of trivia...
(If the whole point of your story is to have a mega-crossover, this doesn't apply... but that doesn't appear to be what your story is.)
As to how to recharge Ifurita on Earth, at this point you haven't yet introduced Lindy, Chrono, Amy, and the Asura. I expect that Chrono and Amy would have enough knowledge about magic to be able to figure out what needs to be done to keep Ifurita going, and Lindy definitely has enough magical power to spare some for Ifurita.
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Rob Kelk
"Governments have no right to question the loyalty of those who oppose
them. Adversaries remain citizens of the same state, common subjects of
the same sovereign, servants of the same law."
- Michael Ignatieff, addressing Stanford University in 2012
Quote:Coda: Ordinary WorldThere's no real point to introducing the Negima folks if they're just going to be a background point. Never introduce a crossover story that you don't need to introduce just to make use of one element of the crossover story - the readers will expect to see all of the other crossover story's elements take part in your story.
Collecting Ifurita (a few weeks later; even with the buffers dimensoinal transit is impossible to Nanoha's Earth until then) and dealing with Nanoha's family, including Uncle Takahata called in from his teaching job since it looked like magic was involved. He may or may not have managed to feed Ifurita a bit of mana to get her semi-functional despite the lack of power key staff, consulting with Eva and whatsername the time traveller (Chao? Chachamaru's other 'parent') due to the (admittedly superficial) similarity to Chachamaru is an option. Somehow having her form a provisional pactio with Negi is not out of the question, though in the long term her lips are entirely Makoto's. Negi, being a kid, can get away with it, though. (or if all else fails Eva, I suppose; I'm sure Negi would be happy to have her moved from his circle of vult- sharks- girlf- ACCQUAINTANCES to Makoto's. Negima isn't meant to be a major crossover element, though, just a means to get a bit of mana into Ifurita and facilitate a "...so that's how it is," off-camera plot summary to the Takamachi family so they have outside verification when their nine year old daughter vanishes for a few months and comes back twelve, and so the seriously drained Demon-God doesn't die of energy depletion before the dimensional turbulence has settled down enough for Makoto to bring her staff. (Maybe shed just shut down, but if so why bother sticking her in a stasis chamber on Forbidden Island?)
(If the whole point of your story is to have a mega-crossover, this doesn't apply... but that doesn't appear to be what your story is.)
As to how to recharge Ifurita on Earth, at this point you haven't yet introduced Lindy, Chrono, Amy, and the Asura. I expect that Chrono and Amy would have enough knowledge about magic to be able to figure out what needs to be done to keep Ifurita going, and Lindy definitely has enough magical power to spare some for Ifurita.
Quote:Hazardous Lyrics II: Das OmenTwo-and-three-quarter years, in canon El Hazard. (Specifically, 1,001 nights. Please tell me you get the reference.)
Dealing with Die Wolkenritter/continuing the Nanoha story with her and Fate suddenly a year or two older, (rather than about four, since Yuuno's knowlege of Alhazared's Lost Logia let Makoto figure out the Eye of God much faster.)
--
Rob Kelk
"Governments have no right to question the loyalty of those who oppose
them. Adversaries remain citizens of the same state, common subjects of
the same sovereign, servants of the same law."
- Michael Ignatieff, addressing Stanford University in 2012