To create Honkai Impact 3rd in a world where Kallen exists.

"Since you are indeed going to another world, what is the price you will pay for completing all of this?"

"Ah, the price. Indeed, everything has a price. But I'd like to correct a subtle point first."

Otto paused for a moment, then smiled.

Looking at his last student,

He understood, he certainly understood the other party's intentions and what they would do next.

But isn't that what he wanted?

Besides... he didn't dislike this kind of kindness; it always reminded him of Karen.

He did not dislike those who inherited Karen's spirit, as long as they did not hinder his plans.

"—I am indeed leaving 'this world'; but strictly speaking, I am not going to 'another world'."

"My destination is 'the other side of the world': it belongs to the boundary between worlds, a place where we can redefine 'time'."

Otto smiled and explained to the three Valkyries before him, but seeing that they still didn't understand, he could only offer further explanation.

Time moves forward steadily and unchangingly in this world, while the tree of imaginary numbers connects to even more dimensions...

"If we could find a way to walk on the tree of imaginary numbers... then time could flow backward before our eyes."

Durandal looked at him seriously and continued to ask, "Can time really be reversed?"

This statement, spoken by countless philosophers and promised by countless truths, surprisingly held a sliver of hope of being realized in Otto's words.

This should be considered absolutely impossible; it's just wishful thinking on one's part.

But this was clearly difficult, he sighed, and said frankly.

"I can't turn back time. Nobody can turn back time."

"But from another perspective, time is merely the direction in which the tree of imaginary numbers grows, and has no other meaning."

"Therefore, as long as we can manipulate the tree of imaginary numbers itself, it is not difficult to choose a new point where the world 'grows'."

"What... not manipulating time, but manipulating the world?"

Durandal looked horrified; she had never heard of such a thing before.

Otto smiled, but his words carried a chilling undertone, sending a cold shiver down everyone's spine.

"If we could trace back the 'growth point' of the tree of imaginary numbers five hundred years..."

"The world five hundred years ago could abandon our present moment, and abandon this future that has become history—"

Abandon the present world? Go back to the past?

The group of people were stunned, staring at the smiling man.

They didn't understand, but it was also easy for them to know.

How much impact would this have on the original world?

If we go back 500 years and Kallen were still alive, then... what about now?

In an instant, cold sweat broke out. It seemed... really possible?

Time is irreversible at this latitude, but what if we move to a higher latitude?

No, how could that be!

[Wow, how did you do that? According to this worldview, it seems possible.]

Suddenly, even the comment section was filled with discussions about Otto's plan, and there were far fewer comments about Otto showing off his health bar. Of course, they didn't know that they were in a world like this too, otherwise they would have started to worry about whether they were being used as sacrifices.

"Is this really possible?"

Alicia frowned slightly, but this wasn't her area of ​​expertise. As someone who had missed out on nine years of compulsory education, Alicia wasn't entirely able to understand what the other person was saying.

"In terms of the possibility of achieving it, there is; but in reality, there are many more problems to be solved. Even if Otto didn't care about this world, it would be almost impossible for an individual to achieve it."

Mebius pursed his lips, a hint of surprise in his snake-like eyes.

She had guessed it, but she still couldn't believe the other party would resort to this method; it could very well lead to the extinction of civilization.

Moreover, the energy, consciousness, resistance, etc. required are immeasurable.

In other words, with this kind of power, killing any Herrscher would not be a problem, and it would be a thankless task.

"But this is still not right. If this is a plan, Kiana and the others shouldn't be in it, or the previous performance was meaningless..."

"Wait, the Herrscher of the Void, haha, no wonder he always emphasized that the Herrscher of the Void is essential!"

Vivi leaned on her hand, deep in thought, when suddenly she had an idea and slammed her hand on the table excitedly.

"But will the Herrscher of the Void help him?" Mebius asked after a moment of doubt.

"Whoever wants to help can help, I won't." Xilin, who had somehow gotten close and overheard the conversation, puffed out her cheeks and said.

She thought she was already feeling pretty bad, but when she saw herself in the game, she instantly realized that her current life as a homebody was quite comfortable, and there was no one who was always thinking about her.

But she felt a deep unease, a mixture of anger and fear, towards the man named Otto.

"If they won't even help with this Void Herrscher... Kiana probably won't help with this in the game either."