Zellar
At the Castle That Never Was, Zellar was fighting Heartless in the Sanctum of Time.
Zellar using his Darkness to summon many powerful and destructive Heartless; he used them to satisfy his boredom by eviscerating all of them with his Zanpakuto.
Eventually, his patience had run out as he called out loud with an impatient tone, "Young!"
And all of a sudden, Young Xehanort had appeared next to him with dispersion of darkness, "You rang?"
"I want to leave. I'm tired of this place," Zellar replied.
Young Xehanort grunted in annoyance, but he did as Zellar wanted and teleported both Zellar and himself out of the Sanctum of Time and into The Grey Area.
As soon as they entered the empty Grey Area, Zellar opened a corridor of Darkness as he placed on his hood; he began to walk towards the portal.
"Where do you think you're going?" Young Xehanort asked.
"I'm going to entertain myself," Zellar replied as he stopped himself from entering the corridor.
"Like hell yo-," Young Xehanort tried to stop him from leaving.
A corridor of Darkness opened up behind Young Xehanort.
"Let him be," Xehanort exited from a corridor of Darkness interrupting his younger self, "I am getting rather exhausted of waiting for the guardian to make a move. Besides we need to discuss about our plans and start take measures."
Young Xehanort grunted annoyingly as he bowed towards his older self, "As you command my liege."
Zellar walked through the corridor until he entered a world completely different.
The world was surrounded by ruined, suburban buildings that looked nearly like an over-compensated fallout city. The sky was filled with dark and ominous clouds that spew out lightning as if it was the end of the world.
On a near-ruined skyscraper, that looked like it could collapse at any moment, were two people. Both people were wearing dark clothing and had abnormal swords.
Zellar travelled in midair as he occasionally pushed off of stable objects to continue his momentum through the air. He eventually got into a vantage point to assess the situation that is happening on hand.
A man in long silver-haired with a long katana was pushing back a blonde spikey-haired man with a large heavy sword is they continued their fight at a side of the ruined building, near the roof. The silver-haired man pushed the blonde with a flurry of swings from his katana and kept on dominating the fight. The blonde was overwhelmed by the attacks and knocked off balance as the man, with the long katana, knocked the blonde inside the building with a swing of his forearm.
"Hmm… this is interesting," Zellar said impressed with the silver-haired man's strength and power.
Although the silver-haired man, at the moment, wasn't showing or releasing any power of any sort; Zellar could feel the dark intense power from within the silver-haired man.
The man got into a stance with his katana over his head and charged in after the blonde, but the blonde immediately got up from the pile of rubble that fell on him as he was knocked inside of the building. The blonde began to emit a blue aura around his body and charged at the silver-haired man.
The silver-haired man easily read his movements and swings as he easily dodged and blocked each attack until the blonde did a backflip in order to gain some distance. As soon as the blonde got some distance, he lunged at the silver-haired man with a mid-air attack, but he was countered with a lunge, from the unnecessarily long katana, around the stomach region of the body.
The blonde weakly struggled in pain as the silver-haired man raised him higher into the air.
All of a sudden, the silver haired man grew a single, black angel's wing as he swung his sword upwards, throwing the blonde into the air over the roof of the building.
"Interesting… a fallen," Zellar took mental notes to himself as he continued to watch the fight.
The silver-haired man followed the blonde into the air as he flew into the sky with only one wing he has. He swung twice, but they were blocked by the blonde with the heavy sword. The silver-haired man broke the blonde guy's guard as the blonde was hit with a flurry of lunges, by the silver-haired man, all over the blonde's body that connected. And with the final lunge, the silver-haired man threw the blonde down towards the roof.
The throw was powerful enough to make a large crater-sized dent on the roof as the blonde crashed onto the roof, but the roof did not break on impact as the blonde had lain on the roof dazed from the crash.
The blonde weak and mortally wounded, from the multiple lunges from the silver-man's overly-compensated katana, but slowly and steadily began to pick himself back up. Leaning heavily onto the heavy sword, the blonde brought himself into a kneeing stance. The silvered hair man was still in mid-air as he put himself into slicing motion as he began to fly towards him with an attack.
Zellar sensed a change into the wind as the blonde's spirit increased.
The blonde quickly picked himself up as he jumped into the air to meet the silver-haired man's attack and knocked back both the attack and the silver-haired man back. The silver-haired man flew back into the tip of satellite tower that was connected to the building's roof and pushed himself further up into the air to gain more distance. The blonde did the same as he followed the silver-haired man into the sky.
The silvered hair man looked amused, although, little did he know, he was severely underestimating his opponent.
The blonde swung his sword over his head as a propeller a few times to close the distance as the heavy sword began to emit the same blue aura from earlier.
The blonde traded a single strike with the silver haired man.
All of a sudden, the heavy sword ejected itself into five regular swords. The man wasn't expecting that to happen as he had let his guard down. The blonde emitted the same blue aura as he zipped toward the first sword and slashed through the silver haired man.
"Well, he's in trouble…," Zellar said out loud to himself in a disappointed tone.
After 14 strikes, the blonde was ready to deliver the finishing blow, but this was the point of where Zellar stepped in.
Zellar locked onto the silver-haired man's energy signature as he used instant transmission to instantly teleport himself in front of the silver-haired man as the blonde was delivering the final blow.
And what seemed to look like micro-seconds in real life, felt like seconds with Zellar's lightning-quick reflexes and reaction time, as he quick drawn his Zanpakuto and blocked the final blow in front of the silver-haired man. Zellar then pushed the blonde off of him with a swing, and the blonde's aura faded as his five swords had rediscovered gravity as they started to fall towards the roof. Zellar disappeared from the blonde's line of sight as he instantaneously reappeared right behind of the blonde with the blonde's back facing towards Zellar.
The blonde had to take a second before he had realized where Zellar was.
"How- ," the blonde tried to questioned something but was interrupted by an extremely powerful kick.
The blonde was sent crashing straight down into the building and through all of the floors inside, before the whole building came tumbling down as it collapsed down on him.
Zellar then replied, "Screw you, that's how."
Zellar was still in the sky with the silver haired man as his attention was placed on him.
"Who are you?" The silver-haired man asked him.
"Nobody. But I will be your master soon," Zellar replied.
The silver-haired man scoffed in ignorance, "Like a mortal like you can control me."
"Funny…," Zellar replied before he instantly lunged himself onto the silver-haired man.
The silver-haired man had barely seen the attack coming as he barely blocked the attack with his katana.
As their swords connected, Zellar softly commented, "You're about to be controlled."
Zellar made direct eye contact with the man's eyes and activated his eyes.
Zellar's iris of his eye changed from dark brown to a blood red color and began to form three extra dots with a small curving tail that formed from a side of each newly formed dot. Each dot was evenly split apart in a certain orbit around the iris.
Immediately, the man's conscious began to fade and his guard began to weaken as he was being put under a trance.
"Good," Zellar had a pleased tone, "You belong to me."
Zellar's eyes began to change again. The three dots begin to disappear as eight thin, black, half-lines connected from the pupil to eight black, fully shaded, half-circles that connects to the sclera, and in the middle of the half-lines is a thin black circle.
"Yes, master," the man replied.
Immediately after he replied, the silver-haired man's eyes changed from his blue-greenish eyes to the same eyes as Zellar's eyes.
Zellar opened a corridor and with a nasty grin on his face began to walk through it, "Let's create some chaos and destruction."
The man followed Zellar as the entrance to the corridor closed right behind them.