[Cosmic Eagle]

Originally Posted by shmaster

Got the book. Geesh, Kazuma really have a thing with trashing human brain isn't he....

Spoiler for Human Brain and Hisako:

So, Rensha, a cyborg body with an artificial brain in tact. But to use ESP power, actually human brain is still required. And those human brains......

Well, everything started when the Misaka clones turned out to be failure. They are biological identical to Misaka, so why they aren't as powerful? The answer is that they become a different person. Everyone have this "secret of life" in their brain that defines who they are and serves as the master portion of the brain, and this is beyond the control of genetics. The portion of the brain that generates ESP power is just the salve portion of the brain. In other words, the "secret of life" is just a obstacle to the scientists that only want the ESP portion part. So what to do? Get rid of the "secret of life", to the they can have a pure chunk of ESP generating brain.
The result? many test subjects have 99.99% of their brain grind away, with their "secret of life" aka their humanity completely removed. What's left of their brain is just a tiny dot that generates ESP, to be put inside Rensha to channel AIM for that mechanical body.

Further surprise, it is Hisako who saved all those test subjects! That is why all the Rensha are so loyal to her. And Hisako was not a insane mad women originally. Hisako went insane because that female Kihara in the white suit copied her thinking pattern into Hisako's mind Dark May Project style.
Hisako was being used and abused by the Kihara all along!

BTW, Kakine network is simply too perfect. I guess that is why Aleister optioned the easier to control No.3 as the building block for Imaginary School District.

Everytime a mad scientist is involved, he/she MUST be a Kihara eh....For all we know Aleister may be a Kihara too