Linel and Fizel, openly expressing both hatred and contempt,
glared at the integrity knights, and the knights looked back at the
two children with irritation, as Eugeo looked up at the children,
harboring doubts in his mind, so—

Until the instant that black-clothed shadow appeared behind
the children without a sound, there was likely not a single being
who had detected its movement.

Kirito, who should have been affected by the paralyzing
venom like Eugeo, approached from behind the two girls with the
smoothness of a shadow panther on the prowl, and took the
venomous swords hanging on their waists by their hilts: Fizel's in
his right hand, Linel's in his left. With that, he drew the swords
upwards and linked it to a shallow slash on each of the children's
exposed left arms.

The children only managed to turn to look back with blank
faces after Kirito landed from a long jump backwards, with the
short-swords still in his hands.

(Alicization Rising, 215)