"Splendid. How fascinating. They really are Sharingan."
Orochimaru carefully examined Shisui's Sharingan, looking every bit like an ophthalmologist examining a patient.
"Hmm. If my deductions are correct, Shisui's Uchiha bloodline should have completely assimilated White Zetsu's eyes."
"All right, thanks for your help. I've more or less worked out a theory."
With that, he let go and gestured for Shisui to take a break.
"Well, Orochimaru? Any ideas?"
Orochimaru nodded and said,
"Combining the information I gathered before with what we've seen from Shisui now, I have a few theories about the Uchiha Clan's Sharingan."
Tetsuya's interest was immediately piqued.
"Oh? Let's hear them."
"I believe the source of the Uchiha Clan's Dōjutsu power isn't their eyes. The true secret of the Sharingan should lie in the Uchiha Clan's brains."
"Their brains? Interesting. That's more or less what I thought. After all, Shisui activated Susanoo even after one of his eyes was gouged out."
Shisui nodded. He had actually already guessed that Tetsuya and the others had probably been watching when he fought Danzo and his men.
Otherwise, how could they have so conveniently fished him out while they were fishing?
"Of course, it wasn't all that easy for Shisui to awaken the Rinnegan again.
"First of all, Boss Chiba, the eyes you gave him are very special.
"White Zetsu's bodies are extremely peculiar. Their physical structure falls somewhere between plants and animals, and the human body doesn't reject their tissue at all.
"White Zetsu's eyes are like clear, plain water without any underlying color. That water can mix with most drinks. Pour it into tea, and it becomes tea; pour it into wine, and it becomes wine.
"Once White Zetsu's eyes were transplanted into Shisui, his Uchiha bloodline began assimilating them.
"And as I said earlier, the source of