The begining of the end:

A army of darkness (named the void) comes from the shadows looking to take what they lost.

Creation vs.Destruction: The army from the void, including Error, vs. Ink and most of the multiverse

The reset:

Two Resets from beings with determination happen at once, causing the multiverse to dissappear

4 beings survive.

Eons later, the 4 finally meet after drifting in the void for so long.

A brilliant scientist

Ink

A random kid

And Peisma, a follower of the void, but the other 3 have no clue he is.

The creation of the first world:

A world is created and they create beings who inhabit it.

A new order:

Beings named the ancestors are made and put incharge of the multiverse from now on, they are led by Peisma

They are half humans, half monsters

They are given special powers that control certain emotions or elements

The expansion of the multiverse.

Peisma is overthroned by the being of time,

This man is named Majora.

Peisma feels betrayed and hides in the void:

the others are confused on his dissapearence but know he'll come back.

Ai presternums:

He comes back MUCH later and has found a way to make the void into beings and weapons, he made parasites who can control others and enormous behemoths he names the Titans

Peisma the proceeds to brutally murder half of the ancestors, they use the shards of their fallen brothers and sisters to create a sword.

The first killed was Majora, where his souls shards were crafted into a mask, and and was brought into the first Dark World (continue reading to learn more)

one gives his life to seal him away in the void. The entrance to said void is split between a statue of them, and to those who die seeking revenge or seething with rage.

The statue that contains peisma cracks, releasing the first ever instance of HATE/Anomaly 17.

The rise of Peismas first follower, Demise:

In the first world, a follower of Peisma gets a visit from Peisma himself, or on a dream, and gives him a advanced version of HATE and declares him the lord of all demons and names him Demise

He proceeds to wreak havoc and two ancestors who look over this world create the first Dark World, and half of the populous goes there and the other with the sword made of the souls of the fallen, named the Godess sword. The other half goes with the child of the two ancestors, who was given a pseudo-ancestors status and named Hylia, goes into the sky creating skyloft.

A brave soldier defeats Demise, where he lays a curse on him, Hylia, the world's citizens, and the ancestors that both he and Peisma will come back, and always will till the end of time.

The ancestors decide to keep half of the populous in what us now called Termina, where they watch over Majoras mask.

The ancestors come back together and further seal Peisma.

This however, takes their lives.

1,000 years later...

A group from hyrule who go to Termina steal Majoras mask and imbue it with Anomaly 17 that had been left over in Hyrule.

The mask stays locked away after it committed atrocities on the populous, until a certain sailsman comes along....

The creation of world 20:15:

This world starts with Humans and monsters from other universes coming together and living in peace until the year 1500 (in the universes time), but after a monster accidentally absorbs a human soul.... the humans live in fear and declare war on them, locking them underground for 500 years. Almost every monster of importance are direct ancestors to the ancestors, but all but three had lost their ancestors gifts.

World War beta begins

The first fallen.

20 years before Ai presternums(2) begins a human goes to MT. Ebbot out of curiosity, and falls into the underground at the age of 5 and fall down. She is named Chara. They came here looking for a safe haven from the way. Later a soldier falls down and kills the kings son who, along with his family, saw Chara as their own, this starts a deep resentment for humans within Chara.

She would later become a celebrity along with Nabstablook and Papyrus.

World War beta ends

Later, direct ancestors of Peisma and another Ancestor are born.

Jack's story:

Born in 2000, (in the universes years) he is born into a family who are both in the military, his father a soldier, and mother who is apart of the FBI. He makes good friends with a girl he met at school, named Rosa. And then WAR ALPHA starts. His father is deemed a MIA and mother dies in a bombing of the facility she worked at both when he was 14.

Rosa's story:

Born in 2001, she is born into a modest family. Not much happens with her life until the age of 9, she moves into the same area of Jack, who she'll end up supporting for most of his life after his parents died.

World War Alpha ends in 2015

Their story together:

After his parents die at the age of 14, he moves in with Rosa and her family, when they turn 18 they move out and live together along with Jacks cousin, Jake (he's next).

Jakes story:

He and his sister were very smart kids from a young age.

When they were 9 the went to see Jack for the firs time.

When they were 13 they started work on a animatronic until they were in high school, and went on to make quite a few more.

Then they find it after it seemingly came out of nowhere.

Anomaly 17 is what they called it.

They ran tests.

They studied it for hours.

It was hostile.

Then it latched onto it.

Made it sentient.

The thing was mad.

It killed her.

Took the others to a warehouse on Germany.

He told every one it was a freak accident and got away with it.

He then decides to start a new life, and Flys out to Jack and moves in with him and his girlfriend.

6 other humans fall into the underground and their souls are used in experiments to revive the kings fallen son and then create Flowey. Then Frisk during War Alpha, seeking refuge, falls down as the seventh fallen.

Frisks story:

Born in 2009, Frisk falls into the undeground when war alpha starts and spares the whole underground.

She makes friends with everyone.

Meets Toriel, basically her new mother.

Says horrible puns with sans.

dates a Papyrus for no reason.

Meets Undyne who tries to stop her from progressing any further.

Meets Alphys and Mettaton

Stars on Mettatons cooking show.

Plays the drums with Chara.

finds out the tests ran by the royal scientists and Asgore.

fighs sans when sans tries to stop her from meeting asgore.

Defeats asgore.

Redeems Flowey.

After she makes it to the end and beats asgore and Flowey, she says they must wait for the 8th fallen to see if it's safe. We know what happens next.

World War alpha starts in 2022

At this time Rosa and Jake were looking for metal at a scrap yard, and Jack was at home. A group of hostile soldiers come into the town and Rosa and Jake find refuge in time. Jack runs to MT. Ebbot and falls down, suffering a major concussion.

He should've died there.

but then Peisma comes to him in the void and offers to give his life back for a little something, what he didn't know.

Wanting to live for many reasons he accepts Peismas offer.

And then all hell breaks loose