Kaito could solve Eve's current [DARKNESS] transformation.
That would be using the ability of [Dalet] to reverse Eve's state, jumping her back to a time before.
Anyway, it was a rewind, turning back time to before Eve transformed in the morning.
But this ability, while useful, only treated the symptoms, not the root cause. Eve probably wouldn't [DARKNESS]-transform immediately after, but it would likely happen again.
So, Kaito needed to investigate thoroughly to see if she could be cured or if she could be made to control the [DARKNESS] ability.
As for its manifestation, Kaito theorized that during the creation process of the bio-weapon Eve, the organization personnel, knowing Tearju would have scruples, either diverted her attention or secretly input this program when she wasn't around.
Naturally, it would be like encoding it into her genes, so after the bio-weapon was formed, it would remain in her genes, granting her this ability and transformation.
Later, Tearju joined the chat group, changing the course of fate.
"Kaito, can Eve be cured?"
"This can't be cured. It's already part of her ability, deeply embedded in her brain, even her genes."
Kaito reached into the time bubble, touching Eve's forehead. Information about Eve's entire body appeared in his mind.
"Currently, I can do two things. First, completely strip away this transformation, i.e., remove the ability."
"Second, give Eve an 'activation switch'. She can use the ability and transform when needed and return to normal when not."
"However, the second option has a small issue. Theoretically, this is just a power boost. Even if her personality changes slightly, it shouldn't cause this mindless berserk state."
Kaito searched his mind for conditions related to the [DARKNESS] transformation.
With his current abilities, plus the relevant abilities he had drawn from the advanced gacha pool, modifying a life form was quite simple.
For example, he could directly modify someone's brain to change their personality.
Or change their chromosomes, turning a male into a female.
Going a step further, turning someone into a cat-eared girl was possible.
Turning them into an animal was more complicated, requiring too many modifications. The human body has 40-60 trillion cells.
Modifying them would be like finding and modifying each cell, and genes were even more complex.
An hour later, Kaito finally found the [DARKNESS] program and discovered why Eve was berserk.
It was because...
The [DARKNESS] program was incomplete!
It was like a version 1.0, without patches or upgrades to version 2.0, which caused the berserk state.
After fixing the berserk state, Kaito considered whether to modify other aspects. But after some thought, he gave up.
It was too troublesome.
Just fixing the berserk state took him three hours!!
During those three hours, he had to understand it from scratch before he could modify it.
It was like someone first learning about computers, then learning software tools, then learning programming code, and finally writing and modifying code themselves.
Sephie had returned to handle rebel affairs.
Tearju was waiting nearby. Perhaps due to prolonged anxiety and tension, she eventually fell asleep from mental exhaustion.
After all, watching Kaito and Eve remain motionless for so long, anyone would get bored and sleepy.
Besides, Kaito had said Eve would be okay.
With that sense of security and trust, Tearju relaxed and fell asleep.
But well...
Tearju's sleeping posture was, how to put it, incredibly unrestrained?
Her clothes were all bunched up.
"Eve, how do you feel now?"
The time bubble dissipated. Eve stood on the ground, blinking cutely, as if trying to remember what had happened.
"Oh! It's Kaito-nii!"
"Kaito-nii, why are you here? Did you come to take us sightseeing?"
It seemed her memory was stuck in the morning, or perhaps before falling asleep last night.
"Hehe, Eve, how does your body feel now?"
"Me? I feel great~ Oh, my body got bigger? And my hands... they changed?"
She could easily change back to normal.
However, Eve's face remained flushed, and her expression was gradually becoming stranger.
A wormhole suddenly appeared in front of Kaito. Its other end connected to the sleeping Tearju.
"!!!"
"Kaito-nii, I know Mama really likes you! I know that! See, her heart is beating so fast and happily!"
Holding up the two large, fair bowls, Eve pressed herself against Kaito to show him.
'So she understood that a fast-beating heart meant this?'
"!!! !!! !!!"
Sure enough, Tearju was jolted awake. When she sat up, she suddenly noticed a wormhole right below her neck.
Then, she sensed that something quite absurd was happening to her.
"E-Eve, what are you doing!!!"
"Hmm? Mama~~ Kaito-nii is here! I'm showing Mama to Kaito-nii!"
While speaking, she opened another wormhole.
Tearing away the inconvenient fabric, Eve's eyes, full of affection, continued to show Kaito.
"Ta-da~ Kaito-nii, do you like it?"
"This..."
'Damn!!!'
'I remembered now!'
'The personality of the [DARKNESS] transformation was the opposite of the original.'
'So, Eve was uninterested in certain things before, but now she was very interested.'
'Wait a minute, something's wrong!'
'Before, Eve was just an 8-year-old girl. What did she know!?'
'No, precisely because she didn't fully understand, she only knew to show off Tearju's best sides? Oh no, the top and bottom sides?'