Flicker Feet

Itachi stared at him and focused his chakra in his eyes. His field of view
was colored red, and the waves of chakra flowing through the bodies of the
three before him began to hazily come into view.
“Sh-sharingan,” the boy next to Kiruru muttered.
The threatened tears began to spill from the eyes of the stouthearted
Kiruru.

“I don’t know if you’ve ever seen eyes like this before, but if you’re ninja,
you should know what they are,” Itachi said.
The girl moved her pointed jaw up and down several times. All three of
them were completely ruled by the fear of death.
“Your techniques don’t work on me.”

“H-have mercyyyyy!” Kiruru pressed his forehead to the ground, and then
reached a trembling hand into his bag, and dug around for something. Itachi
stared at him for a moment, until the boy thrust the Earth scroll at him.
Itachi took the scroll. “As long as you all understand.” He sent a little
chakra down his legs. Flicker feet. He quickly went around behind Kiruru,
and brought the edge of his flat hand down on his neck. “I can’t have you
attacking me from behind. Take a little nap here.”

Kiruru collapsed on the ground as if prostrating himself, and Itachi moved
swiftly around behind the girl and the boy, to deliver similar blows to each of
them.

Book of Bright Light Chapter 3 Part 1