Orobas knowing about before sun and moon was one aspect; perhaps another was his protection of Enkanomiya's people, these "remnants of the First Throne"?
This also explains why Enkanomiya was willing to forget history, because without forgetting, let alone living on the surface, even surviving would be an issue.
How Orobas protected the people of Enkanomiya from the Heavenly Principles is unknown, but it's highly probable this was the case.
He sacrificed his own death and Enkanomiya's complete Inazuma-fication + forgetting true history, allowing this group of "remnants of the First Throne" to return to the surface and survive.
This was a transaction between him and the Heavenly Principles, or rather, the latter was quite willing to do so.
It could both conceal the truth of history, erase information unfavorable to itself as the "Lord of the World," and also ensure the complete death of this great serpent that had survived the Archon War twice.
Why not?
Shiki's perception of Orobas had undergone a drastic change, from a former loser to… a successful loser?
In protecting his people, he succeeded.
But in the end, he was still sentenced to death by Celestia, so in the game against Celestia, he was still a loser.
However, this did not prevent her from having immense respect for Orobas.
'Forget it, when I go back, I'll let the people of Watatsumi Island continue to worship Orobas…'
To Inazuma, he was an aggressor who started a war, but to Watatsumi Island, Orobas was their Deliverance.
Such a great person should not be buried in history, but the method of worship needs to change, after all, it is Inazuma that speaks, not Watatsumi Island.
Abolish the position of shrine maiden, leaving only those for cleaning. Related rituals can still be performed, but the person presiding must be registered with the Yashiro Commission.
Hmm, that's how it is for now…
"So, the Bathysmal Vishap experiment was conducted after Orobas was sentenced to death?"
"That is correct," Eboshi replied. "Everything Watatsumi Omikami did was to ensure the continuation of Watatsumi Island."
Upon hearing this, Shiki immediately thought of the sacred land transformation. This thing definitely wasn't as simple as it seemed on the surface.
"What about the sacred land transformation? It shouldn't be as simple as mere salinization, right? Could this also be a disguise?"
"Haha, salinization is certainly not a disguise. To be precise, it's just one part of the sacred land transformation phenomenon," Eboshi said with a smile.
"The essence of sacred land transformation is the corrosion phenomenon caused by the expansion of the Azhdaha Realm into the Human Realm. Naturally, it's not just simple salinization."
Well, another unfamiliar term. She could understand "Human Realm," which should be Teyvat Continent, but what was "Azhdaha Realm"?
"What is this Azhdaha Realm you speak of?"
"To be precise, it is the Light Realm."
"The Light Realm refers to areas filled with wild elemental power. The overly primitive elemental power makes the Light Realm completely unsuitable for human survival, just like fish in a freshwater lake cannot live in the sea."
"Besides that, there are also the Human Realm and the Void Realm."
"The elemental power in the Human Realm is gentle and docile, suitable for human survival, hence the name Human Realm."
"As for the Void Realm… whether there is even elemental power there is still an unknown, but what is certain is that the energy of the Void Realm is a deadly poison to both the Light Realm and the Human Realm."
"Corruption, mutation, aging, anything can happen."
"Hmm…"
'It seems this Void Realm should be the Abyss,' Shiki thought.
As for the wild elemental power of the Azhdaha Realm… to be honest, Shiki didn't really feel that the elemental power from the Bathysmal Vishap was all that wild.
Perhaps it was related to her being a Archon; anyway, she felt that the Bathysmal Vishap's elemental power was just so-so.
However, looking at it this way, the so-called sacred land transformation was the land developing towards the world's original state, as Teyvat was originally the Azhdaha's territory.
In this light, Celestia looks very much like colonists in a sci-fi movie, transforming the originally harsh environment (wild elemental power) into an environment suitable for their own living (gentle elemental power).
And there wasn't just one wave of these colonists; there were two waves of them, and then these two waves even fought each other.
Hmm, it's quite complicated.
"You continue. I'm more curious about how Orobas reversed the sacred land transformation."
"This brings us to Watatsumi Omikami's second familiar, the Coral Lords," Eboshi said.
"The Coral Lords are creatures that feed on wild elemental power. They can gnaw away the wild elemental power, leaving behind gentle elemental power, making the environment suitable for habitation again."
"Normally, the Coral Lords are in a dormant state; only Watatsumi Omikami can awaken them."
"And bloodbranch coral is the item used to forcefully awaken the Coral Lords."
Shiki understood. It wasn't that Orobas could reverse the sacred land transformation, but that this creature called the Coral Lords could consume the wild elemental power that caused the sacred land transformation, which made it look like it was reversed.
As for why saline land was one of the phenomena of sacred land transformation, it might be because the Bathysmal Vishap was a marine creature…
Below Watatsumi Island was Enkanomiya, where a large number of Bathysmal Vishaps lived. It was understandable that they would cause corrosion to Watatsumi Island above.
Understanding this made things easier. If she wanted to reverse the sacred land transformation, Shiki only needed to periodically "kill" the wild elemental power on Watatsumi Island.
There was no need to retrieve bloodbranch coral to awaken the Coral Lords anymore.
Moreover, from what Sangonomiya Kokomi said, the corrosion of the Human Realm by the Azhdaha Realm was gradually accelerating.
The reason was that the Coral Lords, after consuming the wild elemental power, maintained their effect for a shorter time than before.
"As for the specific details of the bloodbranch coral cultivation experiment, you can refer to the experimental records. I am not a research professional and cannot explain it clearly," Eboshi continued.
"The laboratory for cultivating Bathysmal Vishaps is on an unmapped island in Enkanomiya. With your ability, finding it shouldn't be difficult."
"Alright, I understand." Shiki nodded, then asked, "What do you know about the Mikoshi?"
"The creator of the Mikoshi was named Aberaku, though he also had another name, Abrax."
"Inspired by the Everlasting Archon, Kairos, he used the power of the entire Enkanomiya to construct the Mikoshi."
"Aberaku brought the Sun to Enkanomiya, but despite his extraordinary talent, he was framed and eventually imprisoned. After his death, his soul was even split into three parts, never to reincarnate."
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