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“Otherworldly beauty, world-ending power.”

Chapter XXV-EX/EX-2

Last updated 2026-08-04

(TBA)

Script

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Transcluded Script
This section contains story script that was transcluded from the game with the help of OCR tools to avoid human-made mistakes as much as possible. Generally speaking, it shouldn't be altered unless the in-game equivalent has been changed. Any typos or other errors that are also present in the game are to be retained on the wiki but can be marked via {{sic}}.
Chinese and Japanese romanizations and translations, if present, are unofficial.
  • Last updated: November 22, 2025
Characters Present
Umbral Rose (Icon)
Rita Rossweisse
Misty Lavender (Avatar)
Durandal
Otto Apocalypse (Icon)
Otto Apocalypse
Empty (Icon)
Nagamitsu
Start
SpaceShipInside (Story Background)
When the girl entered the S-rank Valkyrie Command Center, a familiar figure had already arrived.
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Umbral Rose (Icon)
Rita
Ah, Durandal...I take it you've already met with the Overseer.
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Misty Lavender (Avatar)
Durandal
Yeah. This news was a surprise to me.
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Misty Lavender (Avatar)
Durandal
The Overseer disappeared one day, came back just as suddenly, and now he's ready to run the experiment.
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Misty Lavender (Avatar)
Durandal
...The whole thing seems hard to believe.
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Umbral Rose (Icon)
Rita
But it's the Overseer— hasn't he always acted this way?
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Umbral Rose (Icon)
Rita
He has always viewed the world as a chessboard. All the people and things under his control are like the pieces.
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Umbral Rose (Icon)
Rita
For someone who thinks like that, results are the only things that matter.
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Umbral Rose (Icon)
Rita
After all, any value he placed on the process, he gave up many, many years ago.
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Misty Lavender (Avatar)
Durandal
Rita...
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Misty Lavender (Avatar)
Durandal
Why does the way you're talking now remind me of the way Shakespeare and Schrodinger talked?
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Misty Lavender (Avatar)
Durandal
Like...it has some deeper philosophical meaning.
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Umbral Rose (Icon)
Rita
Huh, you really think so?
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Umbral Rose (Icon)
Rita
Well I'm sorry, Durandal. Maybe I'm just nervous about this mission.
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Misty Lavender (Avatar)
Durandal
Rita, you really—
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Misty Lavender (Avatar)
Durandal
Isn't it normal to be nervous in this situation?
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Misty Lavender (Avatar)
Durandal
After all, this involves countless real human lives in another dimension. If I were to make an analogy...
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Misty Lavender (Avatar)
Durandal
In many ways, a small village deep in the mountains cannot be compared to a bustling city.
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Misty Lavender (Avatar)
Durandal
Yet the village also has it own past, present, and future.
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Misty Lavender (Avatar)
Durandal
Now suddenly, we have a chance to alter the fate of everyone there. Who wouldn't be nervous?
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Umbral Rose (Icon)
Rita
Oh. Is that the reason you're suddenly so talkative, Durandal?
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Durandal recalled the way she was several years ago. Back then she was irritable, rather short in stature, and extremely talkative.
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That girl seemed to be a completely different person than the Durandal of today.
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Misty Lavender (Avatar)
Durandal
Rita...I...
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Umbral Rose (Icon)
Rita
What is it, Durandal?
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Misty Lavender (Avatar)
Durandal
It's nothing. Not worth talking about it.
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The girl started to speak, then hesitated.
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If it had been several years earlier, she would have openly talked to Rita about how her personality had changed.
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But that girl was long gone.
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Umbral Rose (Icon)
Rita
...
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Umbral Rose (Icon)
Rita
Bianka...If this mission goes smoothly—
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Umbral Rose (Icon)
Rita
Then afterwards, let's take half a day off and go for a drive. What do you think?
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Misty Lavender (Avatar)
Durandal
Huh? Well, if it doesn't affect our work, then I guess we could...
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Umbral Rose (Icon)
Rita
As for where we should go— How about Naples? It's not far from the Floating Isles.
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Going for a drive. Naples.
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The girl suddenly remembered that on their adventure 5 years earlier, Rita had suggested something similar.
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"The next time we get a chance, we should go to Naples at night and have some fun."
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Misty Lavender (Avatar)
Durandal
...Yeah.
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Misty Lavender (Avatar)
Durandal
Sure.
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Misty Lavender (Avatar)
Durandal
If the Overseer's experiment can really help those people in the bubble universe—
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Misty Lavender (Avatar)
Durandal
Then we can drive to Mt. Vesuvius together.
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The girl smiled and agreed that it was an unusual suggestion for an S-rank valkyrievalkyrie to make.
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WarRoomOfSchicksal (Story Background)
Half an hour later. Schicksal Floating Isles. Special-purpose lab for the Second Divine Key [Cosmic Juggernaut].
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Otto Apocalypse (Icon)
Otto
Excellent. Everyone is here on time.
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Otto Apocalypse (Icon)
Otto
Durandal, Rita, Nagamitsu, Amber— I appreciate you all looking after HQ in my absence.
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Umbral Rose (Icon)
Rita
No problem at all, Overseer.
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Misty Lavender (Avatar)
Durandal
We were just doing what we should.
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Nagamitsu
That's right. Also, Mr Otto—
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Nagamitsu
You can continue speaking for a while. The spacetime manipulation system needs 5 more minutes to warm up.
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Otto Apocalypse (Icon)
Otto
Haha. Looks like the only one who's not on time is the machine.
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Otto Apocalypse (Icon)
Otto
Well then, I'll use this time to familiarize everyone with the processes involved in this experiment.
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Otto Apocalypse (Icon)
Otto
Everyone should have a solid understanding.
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Otto Apocalypse (Icon)
Otto
At first glance, the 4 dimensional spacetime we inhabit seems flat and empty. Yet in higher-dimensional realms, it contains many unimaginably complex structures.
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Otto Apocalypse (Icon)
Otto
People of the previous era had two descriptive names for these structures: the Sea of Quanta and the Imaginary Tree.
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Otto Apocalypse (Icon)
Otto
In the Sea of Quanta, all beings and things decay as time progresses, until everything has disintegrated into chaos.
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Otto Apocalypse (Icon)
Otto
The world of the Imaginary Tree does not share this fate. But there, Honkai events are a frequent occurrence.
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Otto Apocalypse (Icon)
Otto
In essence, that is because the concept of "time" in each realm is fundamentally different. But this isn't what we'll be focusing on today.
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Otto Apocalypse (Icon)
Otto
Today's experiment will attempt to link a bubble universe within the Sea of Quanta back to the Imaginary Tree, saving it from the extinction to which it is ultimately destined.
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Otto Apocalypse (Icon)
Otto
Now that we've done extensive research on the Second Divine Key and obtained technical assistance from World Serpent, Schicksal must make use of this technology.
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Otto Apocalypse (Icon)
Otto
If we do so, in the not too distant future, we will be able to change the fate of—
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WarRoomOfSchicksal (Story Background)
Nagamitsu
The spacetime manipulation system is ready! Mr. Otto, the experiment can begin any time!
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Otto Apocalypse (Icon)
Otto
Well, looks like I'll have to be brief in my explanation.
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Otto Apocalypse (Icon)
Otto
To make a long story short, the subject of our experiment will be a special bubble universe contained within Durandal's body.
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Otto Apocalypse (Icon)
Otto
We will depart from the Sea of Quanta, seek a passage leading to Imaginary Space, and then try to artificially link it to the Imaginary Tree.
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Otto Apocalypse (Icon)
Otto
So, Durandal, you will need to enter the dimensional portal generated by the Second Divine Key yourself.
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Dea Anchora (Icon)
Durandal
...Okay!
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Otto Apocalypse (Icon)
Otto
This time you will be equipped with an upgraded [Genius+] spacetime exploration unit.
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Otto Apocalypse (Icon)
Otto
Nagamitsu will use it to maintain communications with you while you are in complex spacetime environments.
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Dea Anchora (Icon)
Durandal
Got it.
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Otto Apocalypse (Icon)
Otto
Due to the great significance of this experiment—
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Otto Apocalypse (Icon)
Otto
Rita and Amber, you will stay here to manage and coordinate operations.
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Otto Apocalypse (Icon)
Otto
And I will accompany Durandal to the portal.
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Dea Anchora (Icon)
Durandal
...Huh?
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Otto Apocalypse (Icon)
Otto
Hehe, I guess this is the first time we'll be officially working side-by-side.
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Otto Apocalypse (Icon)
Otto
I'll need your assistance— Bianka "Durandal" Ataegina.
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< The screen goes black, then switches to the Sea of Quanta, where the Captain will have control of Durandal's [Dea Anchora] battlesuit. >
Move on to the depths of the Sea of Quanta.
< Defeat the enemies. >
< The Captain can use Otto Apocalypse's skill to assist in battle. Upon the first two activations, Otto Apocalypse will have varying one sentence dialogues. >
< Upon the first activation: >
Otto:
Fade now, lingering shadow of the world.
< Upon the second activation: >
Otto:
No one can get in my way.
< Enemies defeated. >
< Defeat the enemies. >
< Enemies defeated. >
< Defeat the enemies. >
< Enemies defeated. >
Otto:
Interesting place.
Otto:
Fragmented info from the real world is reorganized and built into a unique set of rules and structures.
Otto:
...Just like life.
Otto:
Absorbing everything one can touch within the limited time...
Otto:
To form one's personality and character.
< Talk to Otto Apocalypse. >
Otto Apocalypse (Icon)
Otto
So this is what it feels like in the Sea of Quanta... Not so different than being weightless.
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Dea Anchora (Icon)
Durandal
Please try to stay close to me, Overseer.
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Dea Anchora (Icon)
Durandal
According to Nagamitsu, objects floating in the Sea of Quanta far from a bubble universe are at risk of decaying into nothingness.
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Nagamitsu
But because Mr. Otto's body is made out of Soulium, the risk is very low.
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Otto Apocalypse (Icon)
Otto
But if we lose connection with the outside world, we do have a problem. After all, I already transplanted my consciousness into this body.
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Dea Anchora (Icon)
Durandal
Huh? Isn't that...
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Nagamitsu
Nothing we can do about that. Even though I spent two years improving the Genius+, it doesn't support real-time consciousness projection.
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Nagamitsu
There's just not enough bandwidth.
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Otto Apocalypse (Icon)
Otto
No problem, I won't hold you back in battle.
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Dea Anchora (Icon)
Durandal
You must be joking, Overseer. You would beat me inin one-on-one fight.
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Otto Apocalypse (Icon)
Otto
Haha, I doubt I could defeat you in a fair fight. In fact, it would be no contest.
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Otto Apocalypse (Icon)
Otto
As of this moment, you are Otto Apocalypse's most reliable partner in this adventure.
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Dea Anchora (Icon)
Durandal
...
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Otto Apocalypse (Icon)
Otto
Haha, seems that made you uncomfortable.
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Otto Apocalypse (Icon)
Otto
Well then, enough chit-chat, it's time to take the first step of our journey.
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Otto Apocalypse (Icon)
Otto
Let's go!
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< Enter the portal. >
End