Well that's... good to know. Okay. Neuroi: bad news.

This world definitely doesn't have a god.

People pray anyway, some of them. They're pretty clearly praying to a distant and mysterious figure that never actually does anything directly.

Some time near sunset, there is a loud announcement - loudspeakers? Almost the first sign of electricity here - that anyone who was issued tickets for train 613 should come to the gate now.

Well, he doesn't have a ticket for train 613. And he's kind of tired. He decides to go to sleep.

His tent and the meager supply of stuff is undisturbed. Someone is cooking and singing to her small child two tents over at a small camp fire.

He curls up and sleeps.

And the god wakes. How's the world doing—? What urgent prayers are there?

A lot of people need food, or water, or healing, or shelter. A lot of people have recently and slightly less recently dead relatives.

People feel strongly about all sorts of things. Someone in a hastily-built town dearly wishes he had a giant canvas and lots of paint, so he can make the place a bit prettier. A teenage girl dearly wants to undo her actions so her friend is fixed and she doesn't go to jail. An engineer overseeing a dam and staring at an approaching flood mutters prayers in between shouted instructions.

The highest levels of UDF command want to know what the fuck happened to the Neuroi and will they come back. At least one of them is, in fact, praying for divine inspiration on the matter.

He picks up someone's prayer for food and water, and finds all the refugee centers and devastated towns and so forth and gives all of them their very own cornucopias and ever-flowing fountains of clean water, each one unique in design.

He picks up someone's prayer for healing, and finds all the hospitals and fixes everything he can fix.

He picks up the engineer's prayer and strengthens the dam and removes enough water from the flood to calm it down.

He looks at the teenage girl's prayer - what did she do?

She used her Witch magic to turn her friend into a boy. The friend wanted it and wants to stay that way, but their parents are freaking the hell out, and both teenagers are moderately to severely panicked.

How about the friend gets the magical power to change between current and previous forms at will, that seems like a reasonable quick patch on that situation.

The person praying for divine inspiration regarding what happened to the Neuroi can have a note, appearing in front of them as a scroll tied with a glowing rainbow ribbon:

I'm a god. I'm not always awake, but when I am, I answer prayers. I came to this world and heard the prayers of people affected by the Neuroi, so I answered them.

And it seems important to find out, at this point - what are the Neuroi up to, back at their distant star?

A sizable number of them are heading toward Earth at faster than light speeds. The rest are talking to each other using radio waves. A lot of talking - arguing about what to do now that something unexpected has happened.

He finds the nearest broadly applicable prayer, someone who doesn't know the Neuroi are gone yet and wishes they would be—

The ones who are heading toward Earth at faster-than-light speeds are now heading away from Earth, their positions and trajectories mirrored around their point of origin so it's as though they were travelling in exactly the opposite direction all along.

They stop immediately.

UDF guy is asking what exactly he did to the Neuroi, whether he could please appear credibly Divine proof of this on various sectors of government so nobody panics.

He grabs onto that request and answers it thusly:

A note that says I sent them back where they came from.

Three lovely crystal balls on ornate floating stands, one showing the center of the Neuroi storm, one showing the Neuroi homeworld, one showing the current location of the big Neuroi that was on Earth until recently. All of them are live feeds, all of them can change angle and zoom in and out in response to the will of the viewer.

And then he unravels the Neuroi storm. Goodbye, Neuroi storm.

The storm was unraveling on its own eventually, but weather patterns have inertia and it would have spilled into everything else.

The Neuroi have started to... Consume their homeworld? Huge amounts of matter are being converted into many, many, many of the small and stupid drone brand of Neuroi. From the planet, its star, the other planets and moons in the system.

...That's weird but okay. You do you, Neuroi, as long as you're not attacking any civilizations.

The people of Earth have a wide variety of prayers. The cornucopias are - stunning. A fair number of people seem to be catching on that praying for your desires is, in fact, a thing. There are a lot of people asking him to confirm their religion, or feed them a new one, or smite the blasphemers over thataway. Little girls - and older women - wanting to be Witches is pretty common. Little boys wishing for magic is a bit less common, but happens, sometimes with a 'but don't make me a girl!' attached. 

Of the more unique things... A musician wants his hands to stop shaking all the time. A Witch wants out of her magical oath so she can amuse herself cursing people semi-randomly again. A butcher wants to be rich. An inventor hopes her experiment goes well. A pickpocket wants to find interesting targets. A schoolboy wants help understanding math. A middle-aged woman wants these refugees to go back home. A sculptor wishes his statue hadn't broken.

Many of the people praying for religious answers get candy or flowers or pretty jewelry or bonsai trees, as the whim takes him, all tied up with shimmering rainbow ribbons. He makes people be Witches when they want to be Witches, except he's not sure how to manage it with the boys, so he leaves those alone for now.

The musician can have a cure. The inventor can have a little luck. The pickpocket can have a little luck too, why not. He can't help the schoolboy that easily, and he doesn't have much interest in helping the middle-aged woman, but he can totally fix that statue right up.

This man would like the blasted remains of his house in Eastern Karlsland restored. This girl wants to have blonde hair instead of red. A mother wants her child to stop acting out and misbehaving. A physicist wants an explanation of how the hell these cornucopias work. A different physicist wants an accurate and manipulable diorama of the solar system. That guy from the UDF would like to know if the god has any opinions about the government, and also if the Neuroi's homeworld's behavior is something to worry about. Someone wants to be able to see 'impossible colors'. A baker wants to know what he's even supposed to do now that a lot of people have free food on demand. A steam-powered fishing boat owner wants a cornucopia that will do coal and lubricant and other industrial things. The former Duchess of Celndary wants to reclaim her manor from the UDF. A young Witch wants her magic taken away so she can't accidentally or angrily use it on someone (she can control blood).

A lot of people want eternal youth. A lot of people want resurrections, and one person is requested more often than anyone else. The Unity Mother, a true hero in the public's eye. She died seventeen years ago to a Neuroi.

Sure, Teah can resurrect a house, they're much easier than people.

Hair colour change: done.

Misbehaving child: given rainbow-ribboned candy.

Physicist with questions: also given rainbow-ribboned candy.

Physicist who wants to spy on the solar system: sure, here you go.

Impossible colours: how about infrared and ultraviolet?

Baker: can have his very own small portable cornucopia that provides baking ingredients on request, with a shining rainbow ribbon tied in a bow around it.

Annnnd a couple of people he can't help, and - he gives the young Witch the ability to turn her power on and off at will -

Eternal youth is an interesting question but he doesn't have an answer to it yet so he leaves it for now.

His policy on resurrections is normally 'no', but enough people want this person that it's worth doing. He grabs onto one of the relevant prayers and looks into the past to investigate the Unity Mother. What's her deal? Where would be an appropriate place to bring her back?

The Unity Mother is Samantha Vale. She was the person who got everyone to work together after the first few panic-filled months when the Neuroi first attacked. Aside from putting herself in danger to protect people and trying to inspire other Witches to do the same, she was the very image of bravery and virtue. She personally got a dozen major nations to sign on to creating the United Defense Force, and deposed three world leaders that would have made things difficult and bloody. She created the policy that capital crimes could be resolved by making a magical oath instead of death. And that's on top of all her direct acts of valor, kindness, and tactical brilliance.

There are other heroes of the Neuroi War, but the Unity Mother is by far the most famous of them. She was rather worn down and depressed by the time she finally bit it though...

The UDF headquarters in London would be a reasonable place to do it.

Hmm...

If she was depressed when she died, he'd rather bring her back somewhere less public. He picks a spot near London without any people around, and he resurrects Samantha Vale and gives her a rainbow-ribboned scroll:

I'm a god. I answer prayers. A lot of people prayed for me to bring you back, so here you are.

"...Well. God. I hope you've taken care of the Neuroi?"

This is just barely prayer-like enough that a voice out of nowhere can answer, "Yep!"

"Okay. Thank you."

And she takes a deep breath and breaks down crying.

There sure are a lot of prayers, aren't they? They continue to mostly be along the lines of rebuilding and resettling.

He rebuilds things and hands out candy and cornucopias, and keeps an eye on his resurrectee although he won't be able to do much for her without a relevant prayer to catch.