The underworld of Yevyat, the World Tree Space.

It was a dark place, a huge tree growing upside down, its roots crisscrosing the space, extending from a deep cavity.

And beneath this tree, in the abyss-black underground space, everywhere is filled with a kind of black-purple silt, revealing madness, chaos and pain that is constantly eroding the tree.

On the branch of this tree, a white-haired girl is sitting barefoot on it, staring at the blood-red sky in a daze.

The girl looks about fifteen or sixteen years old, wearing a white divine dress, with skin as white as snow, delicate features, and white long hair casually draped behind her.

She has a pair of emerald green eyes, with pupils in the shape of a four-leaf clover, and a pair of elf-like ears moving one by one. The whole person looks like a blooming lily, very cute

"Alas, I don't know when I can get out. Alas, I really want to find my sister. She must be very lonely now being locked up in the Sanctuary of Surasthana." Lin Yudie looked around and couldn't help sighing.

When she just crossed over to the continent of Teyvat, she became a seedling of the World Tree. She was discovered by the Greater Lord Rukkhadevata and taken care of carefully as a daughter.

At that time, she was still a seedling, although she couldn't move, or do anything else, and even couldn't speak.

However, with such a gentle mother like the Greater Lord Rukkhadevata, who took care of her carefully every day, she also experienced the maternal love that she didn't dare to hope for in her previous life. Lin Yudie's heart was naturally very happy.

At that time, she even naively thought that after she transformed, she would be able to stay with her mother forever.

However, the good times didn't last long. Due to the destruction of the underground Kingdom of Khaenri'ah, the World Tree was polluted by taboo knowledge from outside the world.

At that time, she had not yet transformed. As a seedling of the World Tree, she couldn't leave the world tree space at all, and naturally she couldn't escape the disaster. She also fell into a deep sleep because of the invasion of taboo knowledge.

As for the Greater Lord Rukkhadevata, she had to deal with the forbidden knowledge while taking care of her daughter who had fallen into a deep sleep. In the end, she was too busy to do anything and was accidentally contaminated by the forbidden knowledge.

With nothing else to do, the Greater Lord Rukkhadevata could only break off the purest branch of the World Tree to replace herself as the next Dendro Archon.

She stayed in the World Tree space, managing the World Tree while taking care of her eldest daughter.

In the end, under the care of the Greater Lord Rukkhadevata, all the forbidden knowledge on Lin Yudie was cleared, and she successfully transformed into a new demon god, whose name was Agares.

"Xiao Die'er, why are you on the World Tree again? Come down quickly, it's not far from the place contaminated by the forbidden knowledge, it's very dangerous!"

Just when Lin Yudie was still thinking about it, she heard a shout in her ear, and at the same time pulled her thoughts back.

"Ah? Who's calling me?"

Lin Yudie heard this and looked carefully. She found that under the World Tree, there was a beautiful woman in a white dress. She was walking towards this side and seemed to be a little anxious.

Like Lin Yudie, she was also barefoot. Her long white hair was scattered behind her and reached her waist. Her hair was smooth and had a texture like white crystal.

Looking at the girl's movements in the distance, her steps were a little hurried. Under the swaying long skirt, a pair of snow-white and slender jade legs were looming, giving people endless reverie.

At this time, Lin Yudie heard the sound and immediately jumped down from the World Tree. Then, she hugged her mother skillfully and started to act like a spoiled child:

"Oh, Mom, I just went up to take a look. It's far away from those taboo knowledge. It's okay, hehe!"

The girl looked at the Greater Lord Rukkhadevata with her big watery eyes pitifully. Her little head rubbed against her mother's body, just like a "well-behaved" kitten who was acting like a spoiled child.

"Xiao Die'er, Mom doesn't mean that you can't go out to play, but you were born not long ago and your strength is still very weak. There are still taboo knowledge outside, and it's easy to be infected again!"

"Hehe, Mom, I just went out to take a look. Really, taking a look won't make you pregnant!" Lin Yudie said a little aggrieved.

"Stinky girl, what nonsense are you talking about!" The Greater Lord Rukkhadevata was furious and stretched out her hand to gently knock on the girl's head a few times.

"Hey, don't knock, don't knock, I will become stupid, mom, do you really want your most lovely daughter to become stupid!" Lin Yudie covered her head and looked at the Greater Lord Rukkhadevata with a look of resentment in her eyes.

"Humph, I think you are already quite stupid, otherwise why would you think about going to the forbidden knowledge every day!" the Greater Lord Rukkhadevata said unhappily.

"Oh, I won't do that in the future. I promise that I won't go there until my strength reaches the level of a demon god, hehe."

"Okay, I believe you for now."

   ...

Lin Yudie chatted with the Greater Lord Rukkhadevata for a long time. Perhaps she was a little tired, so she fell asleep in her mother's arms.

She has been like this for many years. She seems to like sleeping in her mother's arms. I don't know why.

At this time, the Greater Lord Rukkhadevata sighed as she looked at the naive girl in her arms.

Her daughter is lively by nature. She should have lived happily like a little princess in Teyvat, but now she has become like this.

Although the youngest daughter was in Teyvat, she was locked up by the people of the Order Council because she had no strength. This also surprised and shocked the omniscient God of Wisdom.

After all, these people were not like this in front of her!

Therefore, the Greater Lord Rukkhadevata decided, instead of sending her eldest daughter away, she stayed by her side to teach her how to practice, so that she could at least have the power of an ordinary demon god.

In this way, even if she was gone in the future, her two daughters would at least have a certain ability to protect themselves, so that they would not be bullied without any ability to fight back.

In Teyvat, the level of demon gods is divided into ordinary demon gods, medium demon gods, high demon gods and the seven rulers of the world.

The Greater Lord Rukkhadevata asked her daughter to reach the level of an ordinary demon god, to be able to protect herself, and not to provoke the other seven gods.

She only hoped that her daughter could grow up happily, instead of practicing day and night.

The Greater Lord Rukkhadevata stood up, gently picked up her daughter, and walked into a small wooden house, which was the small home she built for her daughter.

The facilities inside were very simple, with only a bed, an oil lamp, a fire and pots and pans for cooking, as well as some small toys and clothes made by the Greater Lord Rukkhadevata for her daughter.

The Greater Lord Rukkhadevata held her daughter and placed her on the bedside. Her movements were very gentle, as if she was afraid of waking up the sleeping girl in her arms.

After that, after sitting here for a while, she walked out. After all, she still needed her to suppress the forbidden knowledge, and she couldn't stay here for too long.

However, at this time, Lin Yudie on the bed seemed to have woken up. She opened her eyes and looked at the back of the Greater Lord Rukkhadevata going away. She didn't know what she was thinking.

Then, a small golden square appeared in front of her. It was the first Divine Key of the Honkai Impact World, Void Archive!

This Divine Key, which was created by the core of the Herrscher of the previous era civilization and contained almost all the scientific and technological information of the previous era civilization, just floated quietly in front of her.

This was what she encountered during her journey through time and was forcibly bound to her. It was also with the protection of Void Archives that she was able to successfully come to Teyvat smoothly.

"Mom, you and my sister are more important than this world!" Lin Yudie murmured as she looked at the small golden square in front of her.