At that time, after Uzumaki Naruto fully accepted Regulus's power, his body underwent a strange change.
At that moment, he clearly felt his consciousness begin to feel light, wanting to break free from the constraints of his body and float towards a higher, more incomprehensible dimension.
It wasn't pain or tearing, but a natural sense of "sublimation," where one's vision was expanding infinitely, and one's understanding of the world, energy, and existence was being refreshed exponentially.
I'm about to... ascend to a higher dimension.
A sudden realization flashed through his mind. If he continued, he might break free from the constraints of this three-dimensional material world and step into a realm where information and energy are composed, and perspectives and forms of existence are entirely different.
That might be a more "advanced" form, but it also means... leaving this mundane world of flesh and blood, love and hate.
Leaving... this world where I have loved ones...
The moment that thought arose, Naruto didn't hesitate for a moment.
[ Manifestation of All Things ]
He immediately activated the divine spell.
The process of sublimation was forcibly stopped, and the consciousness and status that were about to detach were firmly pulled back, reconnecting them closely with this human body and this Ninja World.
Naruto didn't want to leave, and he couldn't leave. Everything he cherished was here; it was the origin and the destination of his power.
The unknown "higher dimensions" may be wonderful, but if they don't contain the people and things he's willing to protect with his life, then they are meaningless to him.
Inside the Kamui Dimension.
Uchiha Obito stared at Uzumaki Naruto, who had suddenly appeared before him, and Uchiha Satsuki, who followed closely behind, also entering through the dark portal and locking onto him with icy eyes.
Perhaps it was because they knew that running away was pointless in the face of the opponent's incredible spatial abilities, or perhaps it was the intertwining of the numbness after the collapse and the last obsession in their hearts.
" Uzumaki Naruto..."
Obito's voice was hoarse, "Where exactly are you... and how did you know all that?"
Naruto calmly looked at him. "I don't need to explain these things to you."
"Now... it's time to enumerate your sins."
sin...
The word lashed out at Obito's heart. He instinctively avoided Naruto's gaze.
Now that things have come to this, can we still count them all?
Obito a self-deprecating bitter laugh to himself. There were too many, so many that he had become numb, so many that for a long time he had used the grand cause of "creating a new world" to numb himself, regarding these as necessary, washable "prices."
But now, when that glamorous veneer of self-deception is cruelly torn away, revealing the bloody, filthy truth beneath, the sense of guilt, like stagnant sewage that has accumulated for eighteen years, instantly overwhelms him.
He even felt a moment of disorientation, as if those crazy, blood-stained past events were the work of another stranger.
This is because his state of mind, after the shock of learning the truth, can never go back to what it was before.
That stubborn Uchiha Obito, who believed in the Moon Eye, believed that sacrifice was worthwhile, and believed that he was the savior, has died with the collapse of his beliefs.
Obito can be compared to a game player.
Having witnessed Rin's death at Kakashi's hands, he felt that his "game of life" had ended in the worst and most unacceptable way.
In his eyes, the whole world became a garbage game full of bugs, with a disgusting plot, and impossible to continue.
So he desperately wanted to delete his save file and start over, to enter a completely new world he had created and start a new save.
In that new world, there is Rin alive, there is Kakashi, and everyone he cares about. He can get rid of this broken body and the wounds in his heart, and pick up that innocent dream again—to become Hokage, to become a hero who protects his comrades and is loved by everyone.
Therefore, he did not hesitate to "format" everything in the old archive—family, teachers, companions, the village, and even the lives of countless strangers.
In his view, it was just "data" from the old game, "redundant files" that had to be cleared before entering the new game.
However, the truth about the "new game" has now been revealed—it was not a wonderful new world at all, but a complete scam, an ultimate trap that turned him into a monster and made him a tool for others.
So, what about the old archives he "deleted"? What about the people he personally "formatted"?
Minato-sensei... Kushina's wife... the first Akatsuki members... the bloodline families of Mist Village... and countless others whose names I don't even know...
I'm no match for them... Should I give up...?
Looking at Naruto in front of Obito, and Uchiha Satsuki next to him who possessed the strange Mangekyo, Obito felt a sense of despair resurface.
He felt numbly indifferent to his own life and death, and deep down he even secretly longed for death, wanting to escape this unbearable reality, this absurd life, this overwhelming sin and regret through eternal silence.
But...
Lin...
The name gave a faint throbbing in the depths of his dark and cold heart.
At least... at least bring Lin back...
I got the Rinnegan... and used Samsara of Heavenly Life Technique...
This was the last vestige of his will that kept him from completely collapsing and becoming a walking corpse. Even if the world was a deception, even if he was burdened with sins, even if everything was meaningless... at least, he wanted to make that smile bloom again in this world!
That was the beginning of all his suffering, and perhaps... it could also be the end of his absurd life.
A sudden, frenzied determination erupted from the depths of his numb eyes!
Give up? No! Before achieving this goal, he must... give it one last shot!
Obito suddenly raised his right hand, his palm facing the gap between Naruto and Satsuki.
A sharp wooden thorn instantly pierced through the flesh of his palm!
The target is not Naruto or Satsuki themselves, but the [ Yomotsu Hirasaka ] portal behind them, which is not yet fully closed and connects to the secret chamber of Rain Village!
"..."
Uchiha Obito's consciousness fell into a strange fragmentation.
Just a second ago, the wooden spikes that burst from his palm tore through the air, locking onto the dark portal. His chakra surged wildly, preparing for a more intense, perhaps more desperate, counterattack.
The next second...
what happened?
Memory has severed the most crucial process in the middle, leaving only abrupt and disjointed "before" and "after". The brain is a blank, unable to understand one's current state.
He lowered his head somewhat stiffly and slowly.
His gaze fell on his own chest.
There, a sword stood straight and upright, piercing through his chest. The tip of the sword protruded from his chest, stained with his own warm blood, which dripped silently onto the cold, gray stone surface of the Kamui Dimension.
His heart... was pierced?
There was no excruciating pain as I had expected, no chilling loss of life, and not even much sensation. It was like looking at a wound that had nothing to do with me.
"Pfft."
It was the sound of a sharp blade being pulled from flesh.
Uchiha Satsuki smoothly withdrew his wrist, slowly pulling the blood-stained Kusanagi Sword from Obito's heart. Only when the blade left his body did Obito's body sway slightly uncontrollably.
Only then did Obito belatedly realize that the battle was over.
He didn't see how the other person moved, didn't sense any fluctuations in chakra, and didn't detect any signs of an attack.
It's like... skipping over or deleting the entire process during the time "you were stabbed".
[ Tokoyo ] -- Time deletion.
For Obito, the end came so abruptly. There was no process, only the result.
"I... lost."
Obito murmured to himself, his voice as soft as a sigh. It carried a deep weariness, a sense of relief, as if the dust had settled. Perhaps it was relief.
The final, desperate struggle seemed utterly laughable and powerless in the face of absolute power and bizarre Dojutsu.
" Obito..."
Just then, a familiar, gentle yet painful voice softly rang out, echoing deep within his fading consciousness.
He turned his neck with difficulty and extreme slowness, his vision somewhat blurred as he looked in the direction from which the sound came.
Against the eternally somber backdrop of the Kamui Dimension, a figure stood silently. Short golden hair, eyes that were gentle yet now brimming with complex emotions, and a face that always wore a sunny smile, now etched with deep sorrow, incomprehension, and an overwhelming sense of guilt...
"Teacher...?"
Minato Namikaze.
The Fourth Hokage, the Ninja he once respected and admired most... was also one of his... victims.
Obito's chapped lips moved slightly as he uttered two words that had been buried deep in his heart, words that carried a bitter, Rust quality.
In view, Minato's figure was somewhat illusory, not a physical entity, but more like an afterimage of chakra or a projection of some kind of consciousness.
But that emotion, that gaze, was conveyed with undeniable authenticity.
Looking at his disciple, who was once innocent and passionate but is now burdened with sins and on the verge of death, Minato's eyes were filled with an overwhelming sense of sorrow.
"Sorry..."
Obito gazed into his teacher's eyes, a bizarre thought flashed through Obito increasingly dimming mind.
if...
If, on that day, the teacher... recognized that the masked enemy who controlled the Kurama... was actually himself...
Would everything have turned out differently if... things hadn't turned out this way?
This "if" pierced his already riddled heart, bringing a belated yet sharper pain than a sword wound. Alas, there are no ifs. Sins cannot be erased, and lost lives cannot be brought back.
This was Uchiha Obito's... final thought.
He gave up.
They gave up on using the Hashirama Cells in their bodies to repair the heart's damage, abandoning their last instinct for survival.
That's all for now.
Exhaustion, like the deepest sea, completely overwhelmed him. His consciousness, like a kite with a broken string, plummeted and sank rapidly into the boundless abyss of darkness.
He slowly and obediently closed his eyes. His last breath dissipated with him.
Within the Kamui Dimension, deathly silence returned, leaving only the gradually cooling body and the pool of glaring blood on the stone surface.
Naruto watched this scene quietly, watching his father's face, filled with guilt and sorrow, slowly dissipate into the air, and sighed softly.
"Dad... he really likes to take all the responsibility on himself."