Erebus had the same black hair as Nyx and appeared to be a handsome young man in his mid-twenties. The black cloak he was wearing was instantly destroyed as Kisuke dragged him through the ground and only when Erebus finally managed to gather his bearings and explode his dark aura around him, that Kisuke was forcefully pushed back.
An arc made out of the darkness was also sent out by the swing of his arm as a follow-up attack before Erebus retreated using Space Magic, bringing himself 50 meters away from his opponent.
Erebus saw Kisuke casually dodge his attack, but instead of continuing, he surveyed his surroundings first and noticed that they'd traveled several kilometers away from their first clash, arriving at a place where wildlife thrives and not a single intelligent being was around. A few seconds later, a light shot up from the town, and an instant later, a durable barrier surrounded it with several more on their way to activation.
Taking off his tattered cloak and removing the dust and grime from his blacklight armor, "This is our first time meeting, Kisuke Urahara, but I certainly hope you know why I came here."
"I have a rough idea, but since you can speak for yourself, I don't mind listening."
The rage and hate he had been keeping in control of all this time finally exploded all at the same time, along with his dark aura that obliterated everything within a 20-meter radius of where he was standing. Despite this, Erebus still maintained his outwardly calm demeanor, "There's nothing much to say. You killed my sister, so I'm here for revenge."
Giant lances of darkness instantly manifested around Erebus and were launched towards Kisuke with blinding speed, "Accept my wrath and your retribution."
Kisuke tried to dodge the lances, but they expanded and messed up the predicted trajectory. Without much choice, Kisuke deflected those that needed to be deflected, but the moment his hands touched one of the lances, they were instantly corroded even though he covered them with his aura.
Kisuke looked down at his hands and noticed that his regeneration ability was greatly hampered, 'As expected, I don't have good compatibility against corrosive attacks. Instead of helping, my accelerated regeneration will only increase the rate of corrosion. Though it was not to a debilitating degree for me, it's good to know my own weaknesses. I guess healing arts would be more effective in this case.'
Since healing magic and potions were ineffective for him, Kisuke used Kaidou (Turn Way) to heal his seared skin.
"What a weird aura..." Erebus commented. When he saw Kisuke deflecting his lances, he thought that he was able to take away his arms but contrary to his expectation, he was only able to burn his palms and his mind went through what could have made that possible, "It's not a Devil's ability, nor was it a Human's. It also wasn't anything Divine, Demonic (Youkai, ect.), nor Dragonic... Just what are you?"
"Heh~ Not everybody could tell something was different about it since it's very similar to the combination of Magic and Ki."
"I'm the personification of darkness. Everything that the darkness touches, I can also feel it. For my Divinity makes me the darkness itself." Erebus proudly explained while spreading his arms wide.
At the same time, the shadows beneath Kisuke's shot out numerous spears, blocking his retreat before piercing through him instantly. Erebus smirked when he saw Kisuke fall for his trap, "Did you think I wouldn't notice that you're just buying some time to heal your wounds? As much as I want to converse with you, my desire to kill you precedes it."
But all of a sudden, Erebus heard Kisuke's voice just beside him, "I could guess as much since you were way too optimistic that I would actually fall for that."
Before he could turn his head, Erebus first felt his left cheek cave-in while seeing a blood-red aura around it before he was once again flung off into the distance. But this time, even though he had his passive defenses up and running at full capacity, his entire skull was nearly crushed from the sheer force of what had hit him.
He couldn't even think any of this, as his head was so rattled that he wasn't even able to break his speed and dented the ground as if he was a several tens of meters large meteorite crashing into the Earth's surface, sending debris and dust through the air and creating a large crater.
It was only then that the 'Kisuke', who was pierced by the shadow spears, popped like a balloon, "Seriously... How does that work every single time? Shouldn't they have already guessed that I could do something like that?" Kisuke muttered with a tone filled with disbelief. He'd already finished healing his hands the moment he finished his reply and pretended to be busy with it.
Before the rain of soil was cleared up, a mass of darkness erupted from the newly created crater, revealing Erebus with red eyes, a slightly puffed up left cheek, and a string of blood flowing from his lip, "...You bastard... So you can activate your technique quietly."
Erebus carefully watched Kisuke in the released state of his Shunko with three gates opened. As opposed to what he had seen from his recent match, he didn't think that he could activate it stealthily. But in addition to that, he looked inhuman with white matter and various tattoos covering his body. Looking at his blackened eyes reminded Erebus of his final clash with Ares, 'I thought it was his ace in the hole... To release it so early... Looks like I've underestimated him greatly.'
Refusing to speak any further, Erebus also released the full force of his Divinity. Without Kisuke being able to do anything, a massive wall made of shadows sprouted from the ground and created a kilometer-wide dome before the ground and greenery disappeared too, as if it was being swallowed by the shadows.
Kisuke immediately used a flash step and launched himself at Erebus, but the moment his punch was about to land, the Primordial God of Darkness disappeared and blended among the darkness. Kisuke's aura exploded in mid-air without hitting anything. This didn't surprise him, however, what did was that as his aura continued traveling through the darkness without any hint of it hitting anything, including the ground. A moment later, he felt his own aura dissipating directly behind him, '!?... An enclosed... No... A looped space?'
Without any hesitation, Kisuke released a massive amount of his blood-red aura with him as the epicenter, but the result he hoped for didn't come as his own power was just rebounded to him several times before it completely disappeared, 'So I couldn't break it through brute force, huh...'
"Good job figuring out the nature of this space in an instant." Without any distinct direction, Kisuke heard Erebus' voice, "Welcome to my very own 'Night' and be honored to be invited to my domain where only those deserving could enter."
"I'm really honored.", Kisuke answered sarcastically while thinking of ways to break free from this space.
Erebus guessed what was on Kisuke's mind and said, "Don't bother. Unless I willed it, there's no way for you to go out of my domain. Lament the fact that I had to use this."
But contrary to what he's thinking, Kisuke is actually excited, 'Chaos should have a similar ability considering he's looking over that space so this should be a good practice~.'