That was when a spirited yell finally surged out from Kirito's
mouth. He sharply thrust the black sword held in his right hand
forward.

He's not going to try slashing that giant bird, is he, Eugeo
wondered. However.

The sword Kirito extended straight forward traced an
inconceivable arc. It spun like a windmill, moving lightning-fast
with those five shining fingers acting as the fulcrum.

But that speed was extraordinary. It was unknown how
exactly those fingers moved, the blade rotated with more
momentum than the eyes could follow, as if a semi-transparent
black shield had made its appearance there.

The flaming bird's head made contact with the sixth shield.
Dowaa!! That thunderous noise might have been the giant
bird's enraged howl—

The lethal blaze that had smashed through five ice walls was
shredded into over a thousand scraps by the rotating blade,
scattering it away in a radial manner. But a few among those
enveloped Kirito's body, causing small explosions one after
another.

Watching his partner's body whisked into the air as though it
was repelled, Eugeo screamed.

“Kirito—!!”

Even while he was swallowed by the endless sparks, Kirito
shouted back from the air.

“Don't stop, Eugeo!!”

(Alicization Rising, 163)