The security area located in the deepest part of the underground maze of the Black Iron Palace is a very complete square room. Not only is there only one entrance, but the whole is also extremely empty, without any decoration or decoration, and only white walls, floors and ceilings.

The only exception is a black cube stone table in the center of the room.

In the center of the room with whiteness, something so dark suddenly appeared, which has to be said to be quite obvious.

At this moment, a white dress appeared on the dark stone table.

Yui sat on the stone table, looking at Luo Zhen and Asuna lying on the ground, and smiled softly.

However, looking at Yui's smile, Luo Zhen and Asuna were not happy at all, but instead felt a slump in their hearts.

It’s just because Yui’s smile no longer has the innocence and innocence he used to be, but only has complex emotions full of intellectuality.

That kind of emotion seems sad and sad.

So, Luo Zhen and Asuna were really not happy at all.

"Gu!"

"Woo!"

On the contrary, the colorful butterfly and the flower butterfly seemed to have not noticed anything, still cheered as usual, swept towards Yui, showing a clear closeness at a glance.

Seeing this, Yui's smile also eased a little bit more complicated. She stretched out her hand and touched Caidian and Huadian's heads.

"Thank you for staying with me during this period."

Yui said thank you softly.

That appearance is really much worse than Yui in the past.

Luo Zhen and Asuna had already stood up from the ground.

“Yui-chan…”

Asuna looked at Yui, and she called the other person's name as if she was scared and at a loss.

“…………”

Luo Zhen remained silent, but looked at Yui without turning his eyes, without taking any action.

Yui turned his gaze again to Luo Zhen and Asuna.

"Mr. Luo Zhen, Miss Asuna."

The voice is still familiar, but it is called strangeness. Let Luo Zhen not talk about it. Asuna's whole body trembled slightly, as if she had suffered a lot of blows.

I don’t know if Yui noticed this, she just said with a somewhat illusory smile.

"Although I really want to ask why you two are here, if you think about it carefully, if it is Mr. Luo Zhen, it would not be surprising even if you find it here."

Although Yui's tone became very strange, when talking about Luo Zhen, there was still unconcealed joy and pride in his words.

Luo Zhen also didn't know if he noticed this, so he smiled as if he pretended to be relaxed.

"After all, you were obviously a little abnormal tonight. I just thought that if I followed you secretly, I might know something."

This is Luo Zhen's plan.

"I'm sorry, I didn't mean to leave suddenly." Yui lowered her head and apologized: "It's just that the automatic repair of the program has begun to work, and she guided me here independently and made adjustments, so I left home and came here like a sleepwalking."

Yui's words made Luo Zhen and Asuna easily ignore them.

“Automatic repair?”

Asuna was stunned by it.

"program……"

Luo Zhen moved his lips slightly, and finally turned all the questions in his heart into the most critical question.

"Yui." Luo Zhen looked directly at Yui and asked word by word: "Who are you?"

With this sentence coming out, the atmosphere around changed significantly.

Yui seemed to have known that she would be asked this question for a long time, and the smile on her face gradually disappeared.

But Yui didn't choose not to answer.

"This world (swordartonline) is controlled by a huge system."

Yui suddenly began this explanation without any reason.

"That is a system that can control the balance of the world based on one's own judgment, design it as a conceptual design without human maintenance, has two main programs that correct each other's errors, and then use countless subroutines to make all the adjustments to the world."

(cardinal).

That is the system that regulates the world, which is equivalent to a law-like existence.

"For example, monsters and NPC AI, props and currency balance, player abilities and parameters improvement, floor weather and climate changes, etc., all are operated by a program group under the command of (cardinal), and can be almost perfect, and no one needs to make adjustments and operations in person to operate the entire world."

Yui said slowly like this.

"But there is a task that must be performed by humans."

What task?

"Only humans can solve the trouble caused by the mental state of the player."

Yui lowered her head and only let her voice come out.

"But (cardinal) developers wanted to leave all the tasks of taking care of players to the system, so they tried to make a program, using the characteristics of nervgear to monitor the player's psychological state in detail, visit the players in question, listen to their voices, and in order not to make players feel dissonant, they also gave the program emotional imitation function."

Hearing this, Luo Zhen and Asuna had a certain premonition in their hearts.

Yui once again showed a somewhat empty smile as if she saw through the premonition in their hearts.

"Originally, this program should have started visiting players on the day the game was officially launched two years ago. It entered the use stage, but the main system (cardinal) suddenly issued an order other than the scheduled order to prohibit her from interfering with the player's behavior, so that she could only continue to monitor the player's mental state without being allowed to contact in detail."

The so-called order outside the reservation is undoubtedly only possible from Sao's only game manager, Akihiko Kashiba.

Yui did not mention him, but just continued to explain.

"I believe that both of you also know what the mental state of the players trapped here is after this game is officially launched and thus becomes the Death Game?"

Is that need to be said?

"fear."

"despair."

"anger."

"sad."

"Under the control of various negative emotions, the mental state of players not only becomes extremely unstable, but some people even fall into a state of madness."

Yui bit her lip and whispered.

"She continues to look at the hearts of these people, because she cannot actively contact players, but has the program setting that must go to appease the players' emotions, causing great contradictions. The program continues to accumulate errors and begins to gradually collapse."

Speaking of this, Yui raised her eyes and looked at Luo Zhen. A sincere smile appeared on her tender pretty face for the first time she had just seen.

"Just when her AI program was almost broken down, one day, she suddenly noticed that a player had a different mental value than others."

Upon hearing this, Luo Zhen couldn't help but jump.

“That’s…”
Chapter completed!