Torture

“You misjudged me to the bone.” Itachi’s sharingan changed. Mangekyo.
“Tsukuyomi.”
The second Mangekyo sharingan of that night invited Yashiro into an
unnatural darkness. Crucified on a cross standing in the center of a dark
ocean, he whirled his head around in confusion.
The surface of the dark water rose up at points all over, and these gradually
took on human form. Infinite Itachis. In their hands, they gripped ninja
swords.

“This is a world I control,” Itachi murmured, his hand stretching out
toward Yashiro.
“Ngaaah!”
His blade plunged into Yashiro’s stomach. The Itachi who thrust it
disappeared into the dark ocean.
“I won’t let you die so easily.”
One blade after the next pierced Yashiro’s body. He became a silver
hedgehog, and went limp, motionless. As Itachi returned to the ocean, the
swords disappeared from Yashiro’s body. A look of relief rose up onto his
face, until a herd of Itachis once more blanketed his field of view.
“The real pain starts now.”
Yashiro’s stiff face was transformed into a smile that was already beyond
terror.

Over a span of time that wasn’t even a few seconds in the real world, the
two faced each other silently. That moment would have seemed like several
days to Yashiro. In the genjutsu space produced by the Mangekyo sharingan,
swords were endlessly plunged into his body, over and over. By the time he
was released to the real world, Yashiro’s mind was destroyed.
“D-death ... D-d-d ...” Yashiro trembled and grinned.

Itachi looked down on him, as he slowly drew his sword.
Yashiro was already beyond the capacity to hear his voice. And Itachi had
nothing he could say to him at this stage.
His sword flashed mercilessly, and the pitiful man’s head flew up into the
moonlit sky.

Book of Dark Night Chapter 6 Part 6