Okay, I finally found the scan that shows Kirito's 6-C in AP, not just with Starburst Stream:
I understood was what happening the moment the cluster of stars drifting here from the north became a rainbow-colored waterfall and poured into the blade.
The Night Sky Sword's power was its ability to absorb Resources within a far-reaching range.
And the strongest Resource in this world was most definitely not the Spatial Resources allocated by the system, like the sun or the land. It was the power of the human spirit. The power of prayers, wishes, and hope.
The final member of the almost infinitely descending star cluster was absorbed into the sword.
Then, the very second when the last two golden and multicolored stars dissolved into the body of the blade—
The Night Sky Sword beamed with the rainbow of emotions from a host of people.
The light traveled from the hilt into my arm, permeating my entire body. My lower body, wrecked by Gabriel, regenerated in an instant in the warm radiance.
The starlight congregated at my left arm too, giving the Blue Rose Sword in my hand a blinding luminance—
"OH…HHHHHHH!"
I fanned my two swords far apart, shouting.
"LLLLLLLLL!!"
Opposite me, Gabriel had broken free of his ice bindings and was letting loose a bizarre howl.
He no longer resembled anything like a human. Wrapped in bluish-black flames, his naked, liquid metal-like body was giving off a menacing glow, and the violet-blue light ejecting from his eye sockets reminded me of escaping hellfire.
The giant void blade in his right hand went high up in the air, and his wings that were now also blades lengthened in all directions.
Just then, his left hand aimed at me and a uncountable number of tightly packed black wires burst forth.
"…OHH!!"
I set up a barrier of light with a yell and deflected them.
Then I fully opened my wings, transformed from the hem of my long coat.
With my left sword in front and my right sword behind, I kicked the air with all of my might.
Since there was only a minuscule distance between me and the enemy, it should have taken under a second for me to charge towards him at full speed. But in this segment of time, I became enshrouded in an infinitely long sensation of acceleration.
The figure of a person appeared to my right.
It was a knight in black armor with a black mustache, wearing a long, large blade. The man was hugging the shoulder of a gray-skinned female knight sticking close to him; he studied me and said:
"You must shed your bloodlust, youngster. His empty soul cannot be cut by the Incarnation of murder."
Next, a short-haired, well-built man appeared to his left. Dressed in casual blue robes, he was equipped with a steel-colored longsword. This was Integrity Knight Commander Bercouli, a strident grin over his gutsy features.
"No fear, boy. Your sword bears with it the weight of the world itself."
Basically he absorbed the power of everyone into his sword, but since he could still withstand the power of Gabriel's strikes, it would be safe to assume he'd still have possibly 6-C dura.