Thanks for the translation
Re: sending saintesses back to Earth: before the 6th saintess, why would you even spend an additional 100 years filling the crystal to send the saintesses back, when you can have the saintess you already summoned fill the crystal in one hour to send herself back?
Interference maybe? Alternatively the storage rate is different from the activation rate, so while a Saint could directly activate it they have to be at it the whole time for it to stay stable or else it would fail?Or better yet, have the saintess fill up the crystal, summon a second saintess, have them fill it up again, and send the first one home. You'll always have a saintess with no downtime, AND they get to go home.
But even if this is true, which is not mentioned here, then the option with the old saint summon the new one and the new one sent the old one back would be possible.Now that was satisfying
Interference maybe? Alternatively the storage rate is different from the activation rate, so while a Saint could directly activate it they have to be at it the whole time for it to stay stable or else it would fail?