"Mangekyō Sharingan..."
Sky Fortress Ankbandian.
Hyuga Sho stood in the brightly lit laboratory, staring at the eyes floating inside the containers.
Yakushi Kabuto had surpassed his master.
He had absorbed and mastered most medical knowledge, especially all kinds of techniques.
He alone.
Was enough to rival the combined forces of Shinno and the other Medical Ninjas.
This proved that his judgment back then had been sound.
Of course.
That was not to say Yakushi Kabuto was the god of medicine.
He was a pragmatist.
To a certain extent, he was exactly like Hyuga Sho.
Yakushi Kabuto did not care about the truth of the world or the ultimate limits of science.
He only knew...
What could be used for what.
"My lord... Uchiha Shisui's pair of Mangekyō Sharingan appears to have suffered some degree of visual impairment."
Yakushi Kabuto's research had demonstrated this.
The eyes displayed characteristics similar to those of a nearsighted person, though there were also some differences.
"Visual impairment..."
Hyuga Sho nodded.
The second side effect of the Mangekyō Sharingan.
Aside from the unbearable physical pain caused by prolonged use.
It would also gradually diminish one's eyesight, until finally... complete blindness.
Considering the Izanagi used by Shimura Danzō and Uchiha Obito.
It was not difficult for Hyuga Sho to figure this out.
After Izanagi was used, the entire eye lost its light.
"I extracted a few cells from the eyes and combined them with Wood Release Cells, but I found that I couldn't make it work."
Yakushi Kabuto shrugged.
"However, there was no rejection either. Instead, the cells absorbed them, just as a person eating rice replenishes their own nutrients... This phenomenon... is very interesting."
Yakushi Kabuto adjusted his glasses.
"So... I placed the Mangekyō Sharingan in a Nutrient Solution containing diluted Wood Release Cells to see