Yuzhou and Cain were both very clear about what had happened on Earth thirty million years ago.
The super-ancient civilization was destroyed, and the surviving humans sought new lands to inhabit.
If the native inhabitants of the Land of Light truly originated from Earth thirty million years ago, then that meant they were—
among those humans who set out in search of a new home.
"…Could it be—"
A thought suddenly struck Cain, filling him with shock.
Before he could voice it, Ultraman Yullian continued explaining the origins of the Land of Light's people:
"Thirty million years ago, a massive catastrophe occurred on Earth, forcing humanity to leave the planet and embark on a journey to find new lands."
"There were two arks that departed in search of a new home."
"Our ancestors were aboard one of those arks. Due to an accident, they were drawn into a black hole and lost contact with the other ark."
"However, misfortune turned into fortune. In the end, we discovered this planet within the M78 Nebula of the Orion."
"This planet was initially no different from Earth and was highly suitable for human habitation. The humans who sought new lands settled here, multiplied, and gradually developed their civilization…"
"But one day, the sun of this star system was destroyed."
"With the loss of light, it also alerted our ancient forebears—beings who had lived for an unknown length of time. They formulated a plan to create an artificial sun, and eventually invented the Plasma Spark."
"That is roughly all I know. As for what exactly happened to our ancestors on Earth thirty million years ago, that is a deeper layer of history—one I neither learned nor have access to."
After finishing her explanation, Yullian looked toward Yuzhou and Cain, both deep in thought.
"The first residents of the Land of Light—your ancestors—are they still alive…?"
After some contemplation, Cain asked Yullian this question.
"They are," Yullian nodded.
"Most of them are members of the royal family of the Land of Light. Several of them live in seclusion within this palace."
"I never imagined that the Ultramen of the Land of Light would share the same ancestors as humanity from thirty million years ago."
Yuzhou spoke with clear astonishment. The revelation was truly shocking.
But if the history of the Land of Light in the Tiga universe was like this, then was the Land of Light in other universes the same?
According to Yuzhou's own reasoning, it likely was not.
After all, in other universes, there was no Tiga-era Earth.
Without the migration of humans thirty million years ago, history would inevitably diverge.
And yet, the final outcome was strangely similar.
In both universes, the Land of Light had a Space Garrison, had Ultramen of all kinds.
Though the details differed, the overall structure was nearly identical.
At one time, Yuzhou had believed that there was only one Land of Light across all universes.
But after witnessing Tartarus, the golden warrior capable of traversing time and space, travel to other timelines and take away Belial before his fall and Tregear before corruption, Yuzhou changed his view.
From the events of Ultra Galaxy Fight 2, it was clear—
There can be many Lands of Light.
After all, when Tartarus removed Belial and Tregear, the future Land of Light did not fall into temporal chaos. Everything proceeded normally.
This proved that Tartarus had taken Belial and Tregear from different worldlines, each with its own Land of Light.
Additionally, Super Ultraman Eight Brothers also depicted a parallel world.
That world contained the Ultra Brothers, as well as Tiga, Dyna, and Gaia.
Although, according to Alien Hipporit, that world was invaded precisely because it supposedly had no Ultramen—
Whether that information was true or false remained unclear.
"Yullian, may I meet your ancestors?"
After learning that the royal family of the Land of Light were fellow humans from thirty million years ago, Cain wished to see them.
Perhaps… he might even recognize some of them.
"Of course you may."
Before Yullian could respond, a deep, resonant voice came from the doorway.
Everyone turned to look.
An Ultraman wearing a golden cloak stood there, with thick sideburn-like facial features along his face.
"Prince Cain, it has been thirty million years. It truly has been a long time."
After speaking, the Ultraman stepped forward and addressed Cain directly.
He then deactivated his transformation, returning to a human form.
"This…"
Cain placed Gadi gently on the ground and also reverted to his human form, staring in confusion at the middle-aged man before him.
"Prince Cain may no longer recognize me," the man said with a smile,
"because thirty million years ago, I was merely an ordinary member of Earth's defense organization."
"It's been far too long," Cain replied.
"I can't remember clearly—but you feel very familiar."
Although Cain could not identify the man, the sense of familiarity was undeniable.
"My name is Yaji," the man explained.
"Thirty million years ago, I left Earth with Your Highness. But the ark I was on arrived here."
"Because we used Gijera Essence, our compatriots aboard the ark lived extraordinarily long lives—aside from those who perished due to accidents."
"When the sun of this star system was destroyed, we thought that if we could recreate the Plasma Spark once built by Mr. Keshiva, and use it as an artificial sun, we could escape the darkness."
"And then you actually did it?" Yuzhou asked.
Yuzhou had also deactivated his transformation and stepped forward.
"That's right," Yaji replied.
"At first, we only intended to create an artificial sun to provide light. We sent people to mine crystals from the neighbouring planet and paved the entire surface with them."
"By sheer coincidence, we discovered a Plasma Spark that had been buried underground for thirty million years. We then reconstructed and modified it."
"In the end, the Plasma Spark Tower was completed. However, since we had no Light Particle Converter, none of us transformed into Giants of Light at that time."
As Yaji spoke, nostalgia surfaced on his face.
"Later, an alien race known as the Baltans discovered that the Plasma Spark contained enormous energy. They invaded the planet, attempting to seize it."
"By accident, those creatures altered the Plasma Spark's data—resulting in the evolution of humanity across the entire planet."
"The entire human population evolved?!"
Cain was deeply shocked.
Back on Earth thirty million years ago, only humans with the potential Heart of Light were selected to become Giants of Light.
He never imagined that here, everyone had undergone evolution.
"You could say yes… and you could also say no," Yaji replied, looking at Cain.
"Those who possessed the Heart of Light successfully became Giants of Light."
"As for those who did not…"
"They perished during the evolution."
"That incident reduced the planet's population to ten percent of its original number."