Once more, and while calling out clearly this time, Eugeo tried to
touch the integrity knight's right shoulder. After turning around, the
knight would greet Eugeo with that impish, aloof and demure smile
and—

That idea was crushed by a streaking flash of light.
The terrible impact assailed his right cheek and Eugeo was
helplessly blown away, collapsing onto the practice arena's
floorboards, back first.

“Eugeo!”

Kirito helped him up straight away, but even that didn't register in
his consciousness as Eugeo opened his two eyes wide,
dumbfounded.

Still facing them with her back even now, the knight had her right
hand extended horizontally and now held a long sword before
anyone had noticed. However, it wasn't a naked blade but was
sheathed in a gilded scabbard. The knight had removed the scabbard
from its sword belt and attacked Eugeo's cheek with its tip in that
instant.

(Alicization Turning, 186)