Orochimaru was no longer satisfied with merely changing his biological sex. He even wanted to change himself at the level of the soul.
Naruto did not know what had led him to this decision, but a promise was a promise.
Here, the Dōjutsu called Futsunomitama had to be brought up again.
As a Dōjutsu involving both eyes, Futsunomitama assigned different roles to the left and right eyes.
The left eye collected, the right eye processed, and activating both eyes at once could grant souls to inanimate objects.
The Soul Force Fields unconsciously emitted by the individual souls Naruto collected from the outside world were stored in the Soul Capacitor in his mental world.
Besides the Soul Capacitor, his mental world also contained a Soul Processing Plant. Naruto's right-eye ocular power used this plant to process souls.
Adjusting the colors of a soul's spectrum was only one form of processing. There was also a deeper form: "modifying" the soul!
That had to be done directly inside the Soul Processing Plant!
Naruto said solemnly, "Orochimaru, you need to think this through. Souls are very fragile. In principle, each soul can only undergo one major modification, so the results are irreversible!"
Orochimaru was unwavering. "I've already thought it through, Naruto-kun. Go ahead!"
"All right." Naruto covered his left eye and slowly closed his right, gathering his ocular power.
"Look into my eye!"
Zzt!
The instant Naruto opened his right eye, Orochimaru's slit pupils suddenly trembled!
The scene changed!
Within a vast white space stood all sorts of precision equipment!
A manifestation of Naruto's consciousness appeared there.
He told Orochimaru, "This is the Soul Processing Plant inside my mental world. Until the modification is complete, your soul will be temporarily confined here..."
He pointed to a platform nearby.
"Lie down over there."
Orochimaru lay