"Exchange."
His body grew weightless, rising higher and higher, as though gravity itself on him became effectless. He rose past a hundred meters, before at last stopped—descending deliberately.
Kaios just exchanged the property, vibration storage and release of wolf alloy with the unnatural lighness of the crow alloy. That made his body so light, allowing him to glide in the air steadily.
He stared down at the nightmare, that is now recovered, and searching desperately for him. The residual vibrational wave from the Chorus of Rupture had left its senses confused, and even its eye struggled to track him before, due to its intense force.
Then, its gaze snapped upward, locking on Kaios, who was high in the sky. Its sole eye was now burning with intense hatred for Kaios, due to the previous attack of him.
Suddenly its cracked shards started to hum, a massive amount of sound force erupted from that. Then using that it lifted up a massive number of metallic debris— resulted from their previous, before hurling those upwards like a cannon shot, targetting Kaios.
Kaios shifted in the midair, his body subtly gliding and dodging. With the memory-shaping property of the bull alloy, he redistributed his bio-mass. Using this trick he twisted and leaned, performing clean dodge from the airborne debris, as he slid through the lethal volley with fluidly.
This deadly game of dodgebal between these two, dragged on for another 15 minutes, the sky filled with flying debris. By the time it ended, the battlefield below already became unrecognizable—surrounded by walls of pieces of debris, turning metalic plain into a strange tapestry of metal, when viewed from above.
As this concluded Kaios, descended standing at the tallest debris, while looking down at the nightmare. His back shining from the light if sun, while shadow covered his front.
"Hey ugly.... This is becoming boring, let's end our fight with a last attack." Kaios said still with smile streching across his face.
The monster sceeched as if accepting it, while scoffing at the Kaios, to daring enough to challenge it. Then something happened its already damged metallic cage split wider, as the eyeball throbbed inside, while filling with an unbearable light.
From all the cracks on his body, large amount sound poured, humming and cracking the surrounding air. These sound straight went towards the eye, condensing into a single colossal beam. But it didn't stop there, the wreckage around also started to shake, turned to dust, as the beam drew their molecular stabilization to power up even more.
Then it released it— the path were destroyed, consumed by it, powering it even more.
Erasing everything the beam of resonance, neared Kaios and just was about to hit— "Exchange..."
The only released from the mouth Kaios, before he disappeared, making the beam of resonance futile, as it hit nothing.
"Behind you..." A word echoed, as the nightmare sensed someone, but it was too— late.
A hand snapped forward, plunging into the eye of nightmare. Before the creature could even shriek slightly, Kaios's other hand pierced into its sharded chest, straight through the piked armor above.
For an instant, silence lingered— then a smirk streched across the face of Kaios. From both wounds, a wave of corrosion spread. His both hands became the twin points origin of rot, corroding the nightmare from within.
Its shards every second rattled only to fall in next, every twitch hastened the speed of collapse. Armour gave away, cavities caved in. The corrosion gnawed through flesh of its eye as well as metal alike, until even the tiniest hope of survival for the nightmare was blew out.
Then there remained— silence, the utter silence... The nightmare could not even released its last cry, before turning to dust.
This was what Kaios prepared beforehand, even before he lept towards the sky. It was some step by step planning, though simple in its core.
Kaios silently exchanged the property of the corrosion from the centipede alloy with the property of crow alloy he had, as he stood over the tallest debris.
Also at that time, he sneaked a piece of metal with vibrational storage property, behind the nightmare. Due to its absorbation, it effectively slided as blind spot, and lied there as a normal piece from the metal plain.
This is the piece that helped him teleported to behind the nightmare. This is also the ability of his special ability, it also came under the rule of can exchange anything with its bond, even the positions.
And for all of it to work out he just have to tunnel vision the nightmare upon him, which was relatively easier due to its immense hatred for him.
"Hahahaha, now you rust ass, blind fucker, squel like you were squealing before."
He started to insult the nightmare, not remembering, how his ass handed down by it before. So, it was safely to say, he again lost his mind like at the time, when he finished fighting bull nightmare.
Suddenly a person appeared behind his back, "Quit, that edgy monologue of your my student."
This person was Raion, he came here to inform him he passed the first trial, but now shaking his head, seeing this shameful behaviour from his student.
Kaios turned to see, who is ordering him around, as his eyes focused on the figure of Raion.
"Oh...look, it is none other than my master, the one who is as old as the dirt."
"Even previously used plastic would have started to decompose, but look at you still ordering a 17 year old."
Yeah, his mind is gone, he didn't even know what he is doing now.
As Raion heard this, his face muscle started to twitch, he came here to congratulate, and this brat was now insulting directly on his face about his age.
"You, who i...." Just as Kaios about to throw another insult at him, Raion shouted. "Enough..."
Then he waved his hand, making Kaios lose consciousness. Then he threw him at the very first door, among the two doors that had appeared along side him, after Kaios completed his first trial.
Kaios got swallowed by the first door, leaving only the Raion in the plain of first door.
"This trial was entertaining, i will wait to see, what you will offer me in the next one brat." Raion muttered under his breath, "Though it's not going to be battle oriented, so i will miss you getting bloody beating." He said with slight disappointed laced in his voice.
After this, Raion also vanished from this metallic plain, which had begun to fracture. The sky of it, seemed filled with spiderweb-like cracks, spreading wider with each passing second. Giant canyons were forming on the metal surface. It felt as if the whole plain was on its deathbed, and this apocalypse had come to claim it.
On he other side Kaios could be seen lying on a hard surface. Its different than the previous metallic, silvery surface.
Suddenly the finger of Kaios twitched, followed by waking of Kaios.
"What happened to me?" Kaios muttered as he felt a sharp pain in his head.
He clutched his head tightly, as to lessen it. In some seconds the pain subside, but his palm still rested upon his head.
"Where did this pain came from?" As he said this his gaze shifted into his surrounding.
As he saw the scenery around him, his mind forgot the thing, he about to say, only resounding with one word, that came instinctively.
"B.. Beautiful..."