There was mention of Song of Nephilim, but I only translated a few of the sections, as I was in a hurry. But I have some more free time on my hands now, so I'll look through it again.
Doctus seems to be at least half cyborg with that arm of hers. It also says she destroyed KOS-MOS so she must be very strong.
~Edit~

KOS-MOS profile says that her frame was "in the middle of conversion from Version 2 to Version 3, but..."

Grimoire resembles the type of Realian that the U-TIC organisation produced 14 years ago, but because all the data regarding this has been lost, it's impossible to confirm this.
The data inside her storage cell says that the majority of the records have been deleted. It still retains some memories, but all of the important records regarding the incident are gone.
In the gnosis recall program which is produced by Grimoire, a certain special wave length is generated, and it is possible for that wave length to interfere with the conduct of gnosis.
Several thousand years ago, in order to investigate the connection of Zohar and gnosis, an investigation was conducted, which failed and caused Lost Jerusalem to disappear.
At the time Jerusalem was lost, "Remegeton" itself was collected, escaping with Vector. It was kept within the company, and then later handed over to the Mizrahi main branch through the Zohar Project.
After that, the program is reconstructed by Mizrahi, and "The Song of Nephilim" is completed.
According to Juli Mizrahu, in order to restore that program, a relian of a unique type was designated as the body, and the program was transplanted as a false brain. The control of the Remegeton and the wave motions were were adjusted, but the actual reserach records no longer exist.
Mizrahi aborted Wilhelm's Zohar Project research when he became aware of how dangerous it was. He was then contacted by the underground organization Ormus, establishing the U-TIC system.
(This next part I don't quite understand/can't make sense of, but I tried my best.)
Grimoire: The technical chief of Project Zohar of Vector, the programmer who produced the Gnosis Recall program, "Remegeton". Other personal data is unclear. The information is lost along with him and the rest of Lost Jerusalem.
The real daughter is designated as the body of Remegeton, and the Gnosis summon program is completed. But the Zohar reacts un expectedly in the middle of experimentation, which is a direct cause of Jerusalem disappearing. The daughter died in this accident as well.
The program Remegeton was produced by Grimoire, and 14 years ago it was reconstructed by Joachim Mizrahi. The Realian's name is refered to as "Grimoire girl" (perhaps that means she is the daughter of Grimoire?)
Juli and my older brother decided to rescue the girl. Juli has desperately been trying to help her. Perhaps it reminds her of when MOMO was carried off in a similar way?
During the investigation of the girl, a name which I know very well was mentioned.

No wounds can be seen on the girl, but her memory seems to be lost. Everything except her own name.
When she is refered to as "Grimoire girl", she denies the name and says "I'm Nephilim", and wants the someone named Grimoire to help her.
Compared to the Nephilim that I know, they seems to be different, yet she thinks that they are the same person?



With the sound of a bell, this imaginary girl some times appears before Shion. She exists in the imaginary realm with no physical body, existing only as a consciousness. It's impossible for her to interact with the physical world. During the KOS-MOS main frame Encephilon Dive, she showed Shion a possible future where U-Do is revived.


That girl identified herself as Nephilim. The illusionary girl that some times appears before me. Is there some relation between Nephilim and that girl? If the girl has some sort of connection to the Miltian conflict 14 years ago, and Nephilim, *can't translate this part at all*.
And perhaps agent Doctus who is after the girl has more information about the girl and Nephilim?

Jin: "Don't be scared."
Girl: "I'm... I'm not scared. Grimoire, save me!"
Jin: "Are you Grimoire?"
*Doctus appears*
(I don't remember the rest, there was no text.)
By the order of Vector, KOS-MOS who's body has been destroyed is undergoing the conversion to Version 3. Without KOS-MOS, me and my brother decided to participate in the rescue operation of the girl. She was located thanks to Juli, who tracked the wave length pattern of Remegeton, which is sent out from the brain of the girl.

Nothing special about Jin's profile, except that his grandfathers name was something like Ouga Uzuki, and that Jin's relationship with Pelegri is unclear.

This is the ship where we believe the girl is being held captive, but big brother and I were a bit careless as we stormed in.

*Shion and Jin encounter Doctus again.*
Take this translation with a grain of salt, as I most likely got some things wrong, but an accurate translation should be available soon enough.
But it's interesting how they seem to have information on how Jerusalem disappeared, and that it was because of an experiment conducted by Grimoire and Vector.
And what is this "Remegeton"? Has it been mentioned before somewhere?