That's a fifty percent discount! -

Right, Lianelle brought back everyone from a plague. ...would she get a comparable discount if she just resurrected everyone who's died in the city of San Angeles in the last week?

The discount on that is a bit higher.

There's no way but what if just nobody on the entire planet stayed dead for the last... how much time can she fit in her budget here.

She can fit a bit over an hour.

Holy shit. She's not necessarily gonna just because it occurred to her, but holy shit. Might be more bang for her buck to eradicate some diseases? She should also price out... preventing dungeons from kidnapping people, eradicating dungeons in general, eradicating the big-name "S-rank" ones...

...dissolving the Veil preventing people from understanding magic?

The Veil has been created by a succession of Spring users over millennia as it's been expanded and empowered to keep pace with the mundane world advancing. Dissolving it completely would require the work of a similar succession of Spring users.

Uuuuuugh why. Can she see from here if it's on the world or the people or what?

The world.

If she sticks on the interdimensional transit power (will that only get here here and home, or more places?) and brings people home for a moment will they be free of it?

Nope, but they'll be free of it when they're away from this universe and will be able to remember that later.

How "long" does she get to be suspended like this and what happens if she doesn't use up all the Spring power in that time?

She can be suspended for about a day, or longer if she wants to spend Spring power on it. The Spring would do random wild magical effects if she doesn't use it.

As for her prior questions, if she checks she'll see that she can't completely prevent dungeons from kidnapping people or eradicate them all with the Spring, but she could probably eliminate all the big S-rank ones for half of the Spring, and prevent dungeons from ever getting that bad with the entire Spring.

Uuuuugh she wishes she'd had a catalog of possible things to buy with this power in advance. She's going to definitely think of thirty better things to do after the subjective day is up. Is there a way she can keep the ability to do magic - or is that only useful if you know specific spells, which she doesn't -

- She can keep the Spring as a source of magic, with her getting access to the continuous stream of energy that every twenty five years gets this full, though using it will eventually kill her. 

- She can spend magic to keep some of the Spring magic, with the same proviso that using it will eventually kill her.

- She can grant herself powers, create new spells, or acquire copies of existing spells.

Whyyyyy will it kill her who designed this thing to kill you!

It's inherently the nature of magic conducted through a mortal soul that there is resistance to the channeling and over time their soul will be damaged and they'll die from it. Only a god or someone with an esper power like May's would be able to use the Spring without such resistance.

A god or what now.

A god or someone who has an esper power like May's that would let the magic pass through them without affecting them.

Does the Spring happen to know how expensive that would be?

Depends a lot on how much she was using, comparable to being invisible or flying for a bit for most things, but it can get higher if she's spending a lot of stored-up magic at once.

That's so manageable. She'll just have to kiss Lianelle during any particularly high leverage magic use.

[Lianelle guess what.]

[What?]

[The Spring thinks I can be intangible to its burny magic situation.]

[Does that mean you can just keep the Spring and keep using it as much as you want?]

[At least for twenty-five years, I guess?] What happens after twenty-five years?