Just as Si Xuan was pondering whether he was an ordinary person or not,
the consciousness vessel had already brought them to the World Tree.
Si Xuan could only temporarily put aside his thoughts.
"This is the World Tree?"
The group stood on a protruding tree root, quietly looking at the World Tree with its pink-purple leaves.
"I can feel the flow of the earth veins and the convergence of memories. The information is a bit overwhelming."
Si Xuan covered his head,
as soon as they stepped onto this land, various memories flooded into his brain.
The complex information didn't even give Si Xuan a chance to process it.
But this feeling disappeared after the Great Sage Tree King appeared.
"Seems like you're not quite comfortable in this place."
The Great Sage Tree King, with a gentle smile, floated to Si Xuan's side,
extending his small hand to gently stroke Si Xuan's head.
The moment Si Xuan's head touched the Great Sage Tree King's hand,
the turbulent memories in his mind, like a flood breaking its banks, vanished.
Si Xuan let out a sigh of relief. The World Tree was the gathering point of the earth veins.
It stored almost all the knowledge and memories of Teyvat.
The sheer amount was truly immense.
"Much better, thank you."
The Great Sage Tree King nodded slightly and landed on the ground.
"You guys...know each other?" Paimon asked, looking at the two interacting.
They didn't look like strangers who had just met.
"We just met a while back. Though I only have my memories now, I can move through the earth veins.
The last time you were in the Crimson King's ruins, I met him."
Nahida immediately thought of the second core of the void that Si Xuan had given her a few days ago.
She had been wondering why Si Xuan would have such a thing.
It seems like the Great Sage Tree King had given it to him.
But now wasn't the time to ask about that.
Next, the Great Sage Tree King told Nahida the whole story and the method to save the World Tree,
which involved completely erasing the Great Sage Tree King's existence from the World Tree.
As a newly born Archon, Nahida couldn't accept this.
After a touching and heart-wrenching persuasion,
Nahida agreed to do it.
Throughout the whole process, Si Xuan remained silent, not interjecting.
He didn't step forward either, hiding behind Lumine.
Almost everyone's attention was focused on Nahida and the Great Sage Tree King.
They completely forgot that Si Xuan was still there.
And that was exactly the effect Si Xuan wanted.
He secretly took out a crystal,
not a prism, but a sphere.
It looked like a crystal-clear crystal ball.
This was a special crystal ball Si Xuan had specially made for this operation.
He used Liyue's celestial arts to refine his special energy into this crystal,
capable of storing vast amounts of memories.
Si Xuan quietly waited for Nahida's actions.
The branch representing the World Tree appeared in Nahida's hand.
The memories in the World Tree were being rewritten, and Si Xuan took advantage of this opportunity to use his ability to hack into the World Tree.
He then started to complete his mission.
The memories of the Great Sage Tree King, originally deleted from the World Tree, were immediately transferred by Si Xuan along the earth veins into the crystal ball.
Forbidden knowledge was transferred along with it.
Si Xuan was prepared for this.
This crystal ball had two layers for storing memories. The inner layer held forbidden knowledge,
while the outer layer stored the Great Sage Tree King's memories.
So, one altered, the other transferred.
They were both doing it almost simultaneously.
Once Nahida finished modifying,
the outside world of Sumeru, even the entire Teyvat continent, changed.
Green leaves drifted with the wind to all corners of Sumeru.
This was the Great Sage Tree King's final gift to his people.
The troublesome Marcorian disease vanished from the patients' bodies.
People forgot the name Great Sage Tree King.
Everyone's hearts only remembered the small Lesser Lord Kusanali of Sumeru.
Even the memories of deities like Zhongli were altered.
The existence of the Great Sage Tree King had been erased from the world.
Except for outsiders who had arrived, no one else would remember this deity.
Si Xuan's memories didn't change.
He didn't even notice any tendency for his memories to be tampered with.
This meant he had completely fulfilled one of the conditions of the Descender,
that his existence was not recorded in the World Tree.
Si Xuan looked at the crystal ball, glowing with a green light.
He quietly put it away.
Nahida, kneeling on the ground and crying, looked around with a touch of confusion.
She gently touched the tears at the corner of her eyes.
"Did I just cry? But why did I cry? "
"Why do I feel this heart-wrenching pain? "
"Why do I feel this way after repairing the World Tree."
In the blink of an eye, they were back in the Palace of Alcazarzaray.
Kloe and Scaramouche were gone.
Nahida was still immersed in the sadness from before.
Lumine sensed that Nahida was a little off.
She tentatively asked:
"Do you remember what happened just now?"
Nahida calmed down and thought about Lumine's question.
"Just now? I used the two God Hearts to establish a connection with the World Tree from five hundred years ago. Then I erased the remaining defilement within the World Tree."
Even Paimon said:
"What's wrong? You were there just now, and Si Xuan was there too, right?"
"Yes, that's right."
Lumine lowered her head.
"Sure enough, she forgot about her. I still remember because I don't belong here? Should I tell everyone the truth?"
While thinking, Lumine suddenly felt her shoulder being patted.
She turned her head and saw Si Xuan shaking his head at her.
Almost instantly, Lumine knew that Si Xuan wasn't erased of the Great Sage Tree King's memories either.
He, like her, didn't belong here.
With this thought, Lumine looked at the Vision on Si Xuan's waist.
Would a person who doesn't belong to this world also receive the gaze of a god?
But with someone who remembered the Great Sage Tree King just like her, Lumine felt a little better.
Just then, a strange sound echoed in the Palace of Alcazarzaray.
Lumine and Paimon suddenly felt a wave of drowsiness washing over them.
They tried to struggle, but after a little effort, they fell into a deep sleep.
Nahida, realizing what was happening, was about to warn them, but she discovered that they had already fallen asleep.
While Si Xuan stared unblinking at a certain direction.
"I've been waiting here for so long. Finally, I have the chance to be alone with you. Wasting valuable time, but it's worth it."
The Doctor, with a slightly bubbly voice, slowly walked toward Nahida and Si Xuan.
Si Xuan was angered by the Doctor's words.
"What do you mean by that? Are you saying I'm not human?"
The Doctor paused.
He seemed surprised to see Si Xuan was still awake.
"You...you...you are alright?!"