The untouchable Obito

As Ōnoki, Ay, Kurotsuchi, and Akatsuchi proceed, cautiously navigating through the booby-trapped landscape, they arrive at a secluded, desolate canyon that seems untouched by time. 

The meeting place is stark, with a long, makeshift table set up under a lobbying rock, providing a grim setting for the discussion. On each seat, there was a flag of the respective countries: Kumogakure, Iwagakure, and Sunagakure, all except Konohagakure and Kirigakure.

However, there was also an unclaimed flag representing an unknown ally.

"We should've known Sunagakure wouldn't have the balls to attack Konoha." Ay says, "They're as cowardly as Kirigakure, hellbent on kissing Ryuu Uchihas's ring."

"Hn. Only you can think that way, Ay. Your dull brain is capable of thinking only about fighting. But what about the village? What about the safety of your people? Be honest, a war with Konoha is just as dangerous without Ryuu Uchiha."

Ay smirks, "Then tell me why you joined this suicide mission if it's so dangerous."

There was a pause before Ōnoki responded, "Because... with this ultimate weapon, we will destroy the hidden leaf and its allies."

Ay's eyes widened, "Don't tell me… you've seen it?" Ay muttered in surprise.

Ōnoki grinned, "She showed it to me. A beast unlike any other. No one, not even Ryuu Uchiha, can match its strength."

Ay scoffs, "Months later, and we still have no idea who we're dealing with—only what she possesses."

"What good is her identity when we see what she can do?" Ōnoki replies,

"Ōnoki is right, Raikage Ay." They hear a feminine voice from the darkness.

Almost immediately, they both turn their attention to the final chair. Behind the shadows, a figure emerges, her presence nearly ethereal. A cascade of crimson hair frames her pale face, stark against the room's dark. A single, piercing eye is visible through the slit in her mask, a Sharingan spinning with untold secrets. Her posture is composed, exuding confidence and an air of enigmatic power as she steps into the light, her gaze holding both Ōnoki and Raikage Ay in silent conversation.

"My name serves you no good; only my creations can save you." 

Another man appears. He wears torn-up clothes, has a bald spot on his head, and has no striking features. He stands beside the lady, almost behind her shadow.

"However... if we are to take from Ryuu Uchiha what he's taken from us... I suppose you should know who will be responsible for your victory."

She takes off her hood, revealing her long and beautiful red hair. "I am Yui... Yui Uzumaki."

The air in the room seems to be still for a moment, the weight of Yui Uzumaki's name hanging heavily. Ōnoki's eyes narrow slightly, 'Another Uzumaki using the Uchiha Sharingan... is she a hybrid? A sibiling of Ryuu Uchiha? I do not understand this.' 

Ay's expression hardens. "Uzumaki, eh?" he says, his voice carrying a mix of respect and underlying tension. "Your clan was known for its loyalty and strength. What brings you against Ryuu Uchiha with such passion?"

Yui's Sharingan seems to flicker with a dark light as she answers, "Ryuu Uchiha's rise to power has cost many lives and disrupted the balance of our world. My reasons are my own, but know this—my creations, the Kuroganebi, are not just weapons. They are the culmination of my clan's knowledge and my hatred. With them, we can erase Ryuu Uchiha's influence for good."

The unnamed man beside her, unremarkable yet essential enough to stand by Yui's side, adds gravelly, "We've seen what Ryuu can do. We've suffered because of it. My family has suffered his hand on multiple occasions. Yui sama's creations are our best chance at turning the tide."

Kurotsuchi, listening intently, leans in. "And what do you require from us?"

Yui's lips curve into a slight, enigmatic smile. "Smart girl," she comments. "I require your cooperation, your resources, and your silence. My plans for the Kuroganebi are nearly complete, but we must strike swiftly and without mercy to ensure victory. In return, I offer you the power to break Konoha's stranglehold on our world."

Ōnoki strokes his beard thoughtfully. "And if we agree to this... alliance, what guarantee do we have that you won't turn these creations against us next? If Ryuu Uchiha stands no chance against these beasts, what chance do we have?"

Yui's gaze hardens. "You have my word. A vow Besides, my fight is with Ryuu Uchiha. Once he is dealt with, my creations will no longer have a purpose. And neither will I. I will join my clan and master in the afterlife." 

Ōnoki and Ay look each other in the eye, almost communicating without words. They had come too far to back down as they were about to answer.

From the corner of the room, Obito Uchiha watched and listened to the discussion.

'This is bad.' He thinks, 'And I can't get a look at the Uzumaki woman. I need a small peek...' Obito moves closer...

Thud!

A kunai tagged with explosives hits the wall he's behind.

Boom!

One of the pillars explodes, destroying one of the walls Obito was in.

Obito appears outside unscathed but unable to see beyond the dusty debris. He readies his kunai and katana.

'The materials used to create this place are the same as the ones I used to create my mask.' 

Obito prepares for the inevitable confrontation as the dust and debris swirl in the air, obscuring his vision. 'She sensed me?'

He senses rather than sees his attackers approaching rapidly, the distinct chakra signatures of two of the two Kage pulsating through the air.

First to emerge from the cloud of dust is the Raikage, Ay, lightning coursing around his fists, "Lightning style: Lariat!!"

Whoosh. Ay's blinding speed accelerates even further as he attacks Obito, who barely has time to react as Ay charges at him with the ferocity of a storm. 

'Kamui!' Obito's body shifts to another dimension just in time, making Ay's attack useless.

Obito jumps back, "You're even faster than before... what happened? Did the Tsuchikage lighten your body?"

Ay and Ōnoki's widen their eyes. 

"Oh? Don't be shocked. I know all your tricks." Obito states with a tone of arrogance.

"Tch!" Ōnoki makes more hand seals. "Particle Style: atomic dismantling jutsu!" He aims another of his techniques at Obito, this time trapping him inside the cube.

"What?! I can't get through!" Obito's body also vaporizes as the jutsu collapses, vaporizing everything it touches.

"Kidding." Obito appears behind Ōnoki. A single arm stretches out with his katana plunging into Ōnoki's back.

"Aaah!" 

"Old and slow... that jutsu is useless against me." He says mockingly.

"You brat!" Ay rushes in to punch Obito, but Obito teleports into Kamui again.

'That damn teleportation technique! How do I catch him?!' He frustratedly tries to think of a way out.

"Your techniques are both useless." Obito appears again. This time, he seems further from Ay,

'I'll lure him into my new technique, and then I'll go after that Uzumaki.' He plans out.

"You must be greatly ashamed when Kakashi and Ryuu use your father's techniques that are greater than you ever will." Obito continues his mockery, fanning the Raikage's flames.

"I'll offer one last chance, but you better take it. If not, Kumogakure and Iwagakure will look for newer candidates to be their Kage. With Iwa, I suppose Kurotsuchi will eventually meet the standards to take over. But how about your nation? Will you leave it to those brats who tag along with you?" He continues mocking, 

Ay is at the tip of his anger and starts to pace, 'He's trying to lure me in. So far, he has only used taijutsu against us. He won't or rather can't use ninjutsu when he's intangible.'

"No... I know what you'll do. How about you leave your nation to that foolish little brother of yours? What was it? Butterfly? Bee? That's right…"

Ay angrily clicks his tongue, glaring at Obito.

Obito chuckles darkly, a sense of superiority radiating from him as he prepares for the next phase of the battle. The ground quakes beneath Ay as he reaches his boiling point.

"Enough!!!"

Suddenly, Ay appears barely an inch before Obito, his fist tightly clenched and lightning cackling behind him.

'Got him...' Obito fuels up his chakra, overloading his entire body with his chakra.

'Kamui!'

Slash!

A brief flash of light passes by as Obito vanishes.

Ay falls on one knee, panting desperately, trying to recover and breathe. He balls up his fists, his widened in disbelief. 'He took my arm...'

Obito returns, teleporting behind Ay, his clothes bloody and Sharingan glowing.