"Call me Light Genryū." The White dragon introduces himself.
Mm…
"I am Izuna Uchiha and this dog here is Kurama!" Izuna points towards Kurama.
Grr…
"I am a Kitsune, you brat!" Kurama growls furiously, but the dragon and Izuna ignore him.
"About my origin!" The chibi white dragon reminisces some memories as he is lost in his thoughts.
"I am not a being from this world!" The dragon speaks with a voice full of longing and desire.
Mm…
Izuna and Kurama nods at him.
The technique and the chakra used by the dragon aren't from the shinobi world. Kurama, with his vast experience and Izuna with his Rinne-Sharingan, can notice the fact quite easily.
"It was a few millennials ago! No! Perhaps even before that! My world was once a prosperous world, with all sorts of life growing and flourishing in it. But all of it was destroyed!"
The dragon has a sombre tone as he speaks these words.
He turns towards Kurama and continues.
"This Kitsune is a being born from the chakra of this world and thus is a part of nature itself. In my world, we had five such elemental beings. There were five different Genryū or dragons representing earth, wind, fire, water, and lightning.
These five Genryū were worshipped throughout the world as they helped to maintain order in that world."
"Are you not a part of those five?" Izuna curiously asks him.
"No, I am not!" The white dragon shakes his head.
"When the faith, hope, charity, fortitude, justice, temperance, and prudence of all beings of the world merged with the other Genryū; I, Light Genryū, came into existence. I was born to save the world from the claws of those greedy beings!"
The white dragon has an anguished expression on his face.
Hmm…
Izuna stares at the Light Genryū. He silently analyses the words of the white dragon.
'From the way, he was born, he seems to be a ten-tail version of his homeworld. Also, what I am more curious about is how he can use the Light chakra?'
"Greedy beings? You mean the Otsutsuki clan?!" Kurama curiously questions him.
"Yes! Those Otsutsuki clan members invaded our world in order to steal all of our nature energy. However, the Nature energy of the world has already given birth to five elemental Genryū to maintain balance and order in the world.
So, those Otsutsuki clan members targeted the Genryū. One by one, they suppressed all of them and stole their chakra. They planted a God tree to steal the Nature energy from all beings.
In order to resist the Otsutsukis, the various beings of my world formed a resistance army to have a last stand against them. But it was all futile!"
The dragon helplessly shakes his head.
"In front of the God-like powers of those Otsutsuki clan members, the beings of my world were like ants, waiting to be trampled beneath their feet."
He tightly clutches his claws in fury.
"When all beings had lost hope and the world was on the brink of collapse, a Miko appeared from the stars. She sacrificed her body and combined the power of seven virtues with the five weakened Genryū to create me, the Light Genryū."
"Oh?!"
Izuna raises an eyebrow.
'Seven Virtues?! Why does it sound familiar?'
"I was the last line of hope of my world against the power of the Otsutsuki clan. We successfully resisted their power and even pushed them back, but it was all in vain. Sigh…"
The white dragon sighs helplessly.
"Why?!" Unable to hold his curiosity, Kurama asks him.
"With the failure of the previous two members, the Otsutsuki clan sent more powerful members to correct their mistake. Against more powerful enemies, we weren't able to resist at all. We were quickly pushed into a corner and were on the verge of extinction.
Despair and desperation shrouded us, and all hope was lost. In the gruelling battle, I lost my body and almost all the living beings of my world turned into nutrition for the Chakra tree. It was at this moment; he arrived!"
The white dragon has a respectful gaze.
"Who?!" Kurama curiously asks him.
"He called himself 'the traveller'. He was a shrouded figure of mysteries. He easily dispatched the Otsutsuki clan members to the afterlife."
"The traveller?!"
Izuna has a conflicted expression on his face.
'Just who is this 'traveller' guy? Why is he involved in every shit that's related to these otherworldly beings?'
Doubts appear in Izuna's mind. The white dragon continues its tale.
"We might have won the battle, but we lost the war. From the initial population of billions of beings, only a handful of thousand beings survived.
Under the constant siege of the chakra tree, the Nature energy of the world was exhausted. Our world became a barren and desolate place unfit for sustaining life.
The traveller took pity on us and brought us to a new world, this world! He carved this Dragon blade and sealed the lingering souls of the five Genryū in this blade as a tribute to our old world.
Under his leadership, we found Mount Koryū and established a temple to protect this new world from the threats of the Otsutsuki."
The white dragon sighs as he reminisces about some distant memories.
"Even if our world was destroyed and our connection to our home severed; we persisted to preserve our legacy. To repay this debt of gratitude, we passed the sole legacy of our world to 'the traveller', the legacy of Senjutsu!"
"Senjutsu?!"
Izuna and Kurama stare at each other in shock.
'And here I thought, it was the traveller guy who created the Senjutsu. Turns it out, he was just the inheritor of the technique.'
"However, the traveller already had a technique which was a superior version of our Senjutsu. Still, he passed on the knowledge of Senjutsu to the beings of this world to save it from the same disaster as ours."
The white dragon sighs helplessly.
Fwoosh…
Izuna gathers some nature energy and presents it to the White Dragon.
"You mean to say that the Senjutsu is a technique of your world."
"Yes! The flow of nature energy in our worlds was vastly superior to this world. This world is small-sized, whereas our world could be considered as a middle-sized world. The survivors of our world acted as the guardians of this world to protect it from the otherworldly threats and suffer the same fate as our homeworld."
"Then how did your temple turn into ruins? It was already destroyed when I was born!" Kurama raises the question.
"It's the damn Otsutsuki clan members! Two of their members, a female and a male, invaded this world to harvest its Nature energy. The guardians of Mount Koryū sensed their arrival. Both sides engaged in a brutal battle, but they were no match against the overwhelming power of the Otsutsuki members.
The temple was obliterated and sunk into the bottom of the ocean. Thankfully, the protective barrier carved on the dragon blade preserved it at the bottom of the sea."
The White dragon heaves a sigh of relief. He turns towards Kurama and Izuna and questions.
"I have answered all of our questions, now it's time to answer mine!"
"Go ahead!" Izuna nods his head.
"What happened after the downfall of Mount Koryū. How did this world manage to survive the catastrophe of the God tree?!"
"Well, it's a long story!" Izuna and Kurama fill up Genryū on the series of events that happened after the arrival of Kaguya and Isshiki.
"I see! So, that's what happened?"
Genryū nods his head.
"This world might be temporarily away from harm's way, as in the case of our world. But I suspect, more powerful enemies will soon head your way!" He warns Izuna and Kurama.
"I know!"
Izuna nods his head.
He stares at the small body of the Light Genryū and asks him.
"Can you still recover to your former strength?"
'If this dragon can recover to its past strength, then the Shinobi world will have another powerful protector in its arsenal.
"Unfortunately, no!" The white dragon shakes his head.
"This world rejects my existence as a foreign being and thus I can't absorb the Nature energy of this world. I can forcefully extract the Nature energy using my powers, but that will conflict with my reason of existence. I was born as the saviour of the world, not as the harbinger of destruction. Thus, I choose not to rob the world of its energy."
"That's unfortunate!" Izuna shakes his head.
He turns to Kurama and waves.
"You two keep each company since I have to deal with some affairs outside!"
Whoosh…
Izuna disappears from the Sin Space.
-----------------------
A/N:- There will be an important side arc for a buildup for upcoming arc in the future. The side arc is a bit long but it is necessary for the world building.