After studying it curiously for a while, Elysia still could not figure it out.
Only certain human bloodlines could use the original text of the "Divine Oscillation Wave Drive Spell," so after failing to understand it, she put the cylinder away.
She would let Mobius or Vil-V study it once they returned.
This thing could grant someone higher-dimensional power, nullify magic and spiritual power, and negate altered laws of the world.
Returning the laws of the world to their original state...
The Great Holy Annihilation ritual could alter the rules of the entire world, reshape the worldview and thinking of everyone across the globe, even trigger a spiritual energy revival in a magicless world and reduce gods to demons.
The power of the Divine Oscillation Wave Drive Spell's original text, meanwhile, could negate all of that and return a fantastical world to its magicless origin.
Simply erasing the changes caused by the Holy Annihilation would have been one thing, but in the original story, this technology could also nullify powers from beyond the world.
If Vil-V and the others could fully master this technology and improve it, complete magic immunity might be possible in the future!
Though it would probably be difficult. Even magic immunity was relative.
Still, no matter what, this technology was useful.
Even if it was not useful right now, it might come in handy someday. And if nothing else, she would have another piece of technology stored in her own world.
Just like the reincarnation technology and artificial Sacred Gear technology from the DxD world, it could prove useful in many situations.
"You sisters can stay by my side from now on! As for your wish, I can guarantee it."
Having accepted their offering, Elysia was not the sort of person to turn her back on