Back in the Guilty Crown world, when he look at how Void Genome work, it's making Nagami get the idea of creating Alaya in the Honkai Impact 3rd universe.
Of course, this wasn't just empty talk.
After returning from the Second Eruption while Kiana and Bronya were still enjoying their long-awaited family reunions.
Nagami, together with Yuzuriha Inori and Mana Ouma, had already begun preparing for the Alaya Project.
The first step: allow the Apocalypse Virus to spread to every corner of the world where humans existed, anywhere life could be found.
Honestly, in a normal world, spreading the Apocalypse Virus globally wouldn't be hard at all.
Mana Ouma could simply unleash the "Revelation" as Eve, and it would be over.
But in a world controlled by the Will of Honkai?
That's where things get messy.
As everyone knows, Honkai can manifest in unpredictable forms—like the Black Death, which once directly or indirectly wiped out a third of the world's population.
If the virus descended too suddenly through a revelation and was detected by the Honkai Will…
…well, that would be like handing it a world-destroying weapon gift-wrapped.
The Will of Honkai, already frustrated that all current Herrschers are traitors, would probably devour the virus's consciousness immediately, send Nagami a thank-you banner, and then use the virus to end civilization outright.
The Apocalypse Virus is a biological hive-mind. That brings incredible advantages—
but also a fatal weakness:
Against an entity capable of dividing consciousness?
The virus could be dismantled piece by piece.
And this world is filled with Honkai energy.
So Nagami could only choose the stealthiest approach, let the virus quietly spread across the globe.
No crystal growth.
No visible symptoms.
Harmless as the air itself.
Its only mission: spread, spread, spread.
And to avoid suspicion, Nagami as the King and Inori as the Queen of the void genome strictly controlled the rate of transmission.
Given enough time, no one would notice until it was too late.
Then the virus would fuse silently into every human soul.
Once that happened even if the Honkai Will noticed, it would be meaningless.
The deed would be done.
To devour the virus at that point would be to devour all of humanity itself, an action not permitted under the Trial System.
Maximum stealth. Maximum spread. Zero resistance.
A perfect, undefeatable weapon of humanity.
Once Nagami snapped out of his post-planning "focus mode," he received a message from Inori:
✅ Over 99.99% of all human souls on Earth are already infected
The remaining few were special beings that viruses couldn't reach:
• Otto
• S-Rank Valkyries
• Theresa, practically fused with Judah
• Gray Serpent, a creation of Doctor Mebius
The virus was powerful, but still biological.
Normal souls linked to normal bodies? Easy to infect.
Otto, who no longer even had a body? Good luck infecting that.
Gray Serpent? Same deal technically not human anymore.
Not that it mattered.
Because Alaya represents humanity's collective subconscious.
And those listed few… biologically speaking?
They barely qualified as "human" anyway.
—
With Earth's infection phase complete, Inori would initiate Void Resonance.
The virus embedded in every human soul would become the bridge that connected all subconscious minds.
Finally, Nagami would weaponize the collective subconscious with the power of the Void King.
Thus, an artificial Alaya would be born.
At this point?
The Will of Honkai might as well surrender.
It was probably already impatient.
But rules are rules—still a few minutes left on the clock.
—
"Wait… the plan can already begin?"
Putting down her "Three Years of Honkai, Five Years of Simulation" study guide, the heiress Kiana looked genuinely surprised.
She'd seen Nagami and Inori discussing the Alaya Project in the group chats many times.
Well… "discussion" mostly meant Nagami giving instructions and Inori obediently carrying them out.
True Kiana raised a brow and looked toward the pink-haired girl preparing to leave.
Because she shared a mind-link with her counterpart, she also understood the plan.
But that wasn't what bothered her.
What bothered her was that both her other self and Inori… apparently had ways to contact Nagami directly— ways that even bypassed same-body awareness.
Which… annoyed her a tiny bit.
"…Mm."
The pink-haired girl replied with her usual brevity.
"Wait! If you're about to start the plan, that means… Nagami's back?!"
A spark of joy flashed in true Kiana's blue eyes.
He had gone into the Quantum Sea to rescue Bronya's sister.
Knowing how dangerous that place was, of course she'd been worried.
And he'd been gone almost two months.
Naturally—she missed him deeply…
"Nagami's coming back!!"
"Nagami!!!"
The tuna Kiana and Mei shouted at the same time, their faces lighting up.
While the true Kiana's smile immediately froze.
She glanced at the two radiantly happy girls and sighed quietly.
The Holy Grail War had only seven participants.
The Nagami War… was already in double digits.
Looked like the friendship among those three besties was about to… regress again.
She would also need to be extremely vigilant regarding her sister.
As for the heiress Kiana, she could do whatever she wanted.
After living together with her counterpart, true Kiana finally understood what "same self" truly meant.
Even if they tried to stop each other from doing that with Nagami… once one experienced joy, the other automatically felt all of it.
Double the pleasure…
Honestly? Once you've tasted that, there's no going back.
—
"When will he arrive?! I need to prepare! We've used up all the groceries, I have to go buy ingredients for Nagami's favorite dishes!"
Mei was the perfect wife type gentle, caring, and skilled at housework.
"Inori-chan! Inori-chan! When is Nagami arriving?!"
The tuna Kiana leapt forward and hugged Inori tightly, shaking her like an excited puppy.
Inori was used to the affection.
Maybe being fellow clones helped— their bond was inexplicably strong.
Then she froze.
Eyes blinking cutely.
A brief pause.
And then she smiled.
It was a soft and breathtaking smile, like a blooming flower.
"Right now."
'Bang'
"Everyone—I'm home!"