Flashback.
Inside the Red Line.
Roughly a few thousand years ago, before the Void Century, the people from the moon descended to Earth after having exploited everything they could from the moon.
I mean taking every single last drop of resources.
They came to Earth to do the same thing, you know, they thought shit was sweet.
Getting the natural life energy of the planet and so on, making wishes, you know the shit.
However, life was in fact not sweet.
After they went through the phase of, you know, the good shit like slavery, you know the shit any big kingdom does after some point.
One day, the Sun God was born from the suffering of the slaves who wished not to be abused anymore.
Nika had been birthed in this age, and he was not really a nice guy. He was after all practically half devil like Mu, and half something that had been lost through time.
During his age, plenty of other gods came to be.
Or were they there before?
The records were not too direct on that.
There was Zaza, the Goddess of Rain, Nika the Sun God, the Forest God, and then the Earth God.
Contrary to what was believed, they were not the only gods present.
There were other creatures.
A certain wild monkey was causing havoc around this time, giving zero fucks who he faded.
Everyone could get that staff.
But this was not his story.
At the end of the First World, the people got greedy and the Sun God was slimed out.
Humanity had taken too much from the Earth, and Nika was slain.
By the Second World, where stuff got slightly more peaceful, the time where technology boomed, big Nerona decided to slime his homeboy over a bitch, which he was still infatuated with till this day.
Said woman was the reason the Poneglyphs spread all across the globe.
Said bitch probably had the Love-Love Fruit and used it on the previous snake during the first war.
That snake became the Red Line.
A certain race of people decided to make the Red Line their hub.
The Lunarians.
Having evolved for harsh areas, they were probably the strongest race to ever exist in One Piece.
They also possessed a lot of technology, a lot of tech from the old era.
Though within their group, a certain few existed.
A certain few who knew that Haki could be more malleable.
Those certain few were there from the beginning, recording history.
Learning from other nations.
From the Minks, they made lightning ninjutsu and developed the basics for the Body Flicker, from the Fish-Men, water jutsu was being developed alongside the basics of the Clone Jutsu, due to how mirages could be created with that shit.
From the Giants, they learned swordsmanship.
From the samurai of Wano, they learned about Ryo and Conqueror's coating.
From Ryuma, they learned how to make a Black Blade.
All of this to say, they went all across the world gaining favors from others.
Their tech being quite advanced, Joyboy trusted them enough to gift them the Saru Fruit, trusted them enough to make sure certain lineages survived through time.
During God Valley, they helped.
They never helped enough to be noticed by the Navy, but they did.
Over the years, they made sure no race went truly extinct, usually rescuing them and taking care of them within their homes.
This was what they did at God Valley.
Rescuing the bloodline of Davy D. Jones, the Fish-Man.
More like a Kraken Fish-Man, but this was neither here nor there.
A few months or so before God Valley, Rocks himself came to them.
As for how the fuck he found them since they were so secretive, well his family won.
And two, he roughly guessed they lived near the Red Line, so his ass came there and shouted his full-ass name and waited.
Soon enough, he was answered.
So in exchange for him being willing to be summoned in the future and donating his Haki for some light research, his wife and kid were saved.
Teach even grew up with the Lunarians up until the age of four or six, you know, when they made sure he would not get immediately slimed out once he got out.
The same thing had been done with Roger's kid.
His ass came into contact with one during his voyage.
One of the Poneglyphs mentioned them.
Dick move, Joyboy.
Anyway, his own son was saved there.
Ace's mom did not have to pull the inhuman feat of clenching her pussy so hard.
She kept the baby there for an extra year or so.
Ace was born when he was supposed to, after nine months, and was raised with the Lunarians up until he was one or two.
And from there, Garp took him.
He was not there long enough to remember jackshit though.
That civilization lived in peace and harmony with the people in their walls.
Well...
That was until six years ago.
A/N I kept messing the timeline, but i have it like this.
He was like 12/13 when it happen.
He got captured for a year or so give or take, maybe 2.
He escaped, and drifted at sea for a long, and i do mean long ass time
He landed on the island at like 15.
He is now 19.
So incident happen 6 years ago.