Chapter 4: The Moment Life Was Chosen
The research, once resumed, never regained its former heat.The data lining the displays all seemed dull somehow, their glow cold and lifeless. As Seto continued working, he became aware that Atem’s silence beside him was heavier than usual. Within that quiet, he could still sense the light of the sea from that day, faintly filtering through—
as if only its residue remained, breathing softly inside Atem.
But reason told him it was something that could never be grasped again.
Purpose and theory both felt distant now.
“…I’ll take a short break.”
Atem pushed his chair back and stood. His voice was slightly drier than usual.
Seto gave a brief nod and gathered the documents again. The faint rasp of paper sliding against paper echoed through the stilled room.
And then, only a few minutes later, he noticed it.
The presence that should have been there had slipped away without a trace.
Something flickered, faintly, deep in his chest.
He hadn’t returned to the Underworld—not that he could. He should be back in the room before long.
He understood that. And yet, his body had already risen on its own.
He checked several corridor camera feeds.
Atem didn’t appear on any of them.
His breathing grew slightly shallow.
Where did he go?
As he walked, Seto kept chasing an unease he couldn’t put into words. More than the simple fact that Atem was nowhere to be seen, something deeper creaked within his chest. A kind of “absence” that should never occur began to spread quietly.
Only his footsteps echoed down the corridor.
In the gaps between those echoes, he caught himself—just for an instant—trying to sense Atem’s breathing.
He wasn’t there.
The fact itself was simple, yet when it settled into his mind, it cut with strange sharpness.
Exhaling made his chest ache.
Just as the sea’s light had lingered as a residue that stirred Atem, something inside Seto himself continued to tremble, ever so slightly.
What am I rushing for?
Reason whispered calmly.
But the calm was useless; deep in his chest, a faint heat had already taken hold.
Halfway up the stairs, Seto stopped.
Even after drawing a deep breath, the roughness at the back of his throat wouldn’t fade.
Atem cannot return to the Underworld.
That was fact—an unshakable reality.
Then what was this?
The impossible unease that he might disappear.
It wasn’t like him.
Yet the more he denied it, the denser the restless stirring in his chest became.
Before him stood the final door leading to the rooftop.
The fingers that touched it trembled slightly.
The moment he realized that, Seto clicked his tongue and forcibly steadied his breathing.
Atem is beyond this door.
There was no reason for that certainty—yet his chest had already chosen that answer first.
The cold of the door seeped into his palm.
That difference in temperature mercilessly reflected the instability within him.
He wouldn’t know unless he opened it.
Seto lowered his eyes quietly and held his breath for just an instant—
a brief, silent resistance meant to restrain the reckless urgency rising in his chest.
Then, as if abandoning hesitation behind him, he pushed the door open.
When he pushed the door open, the night wind brushed against his cheek.
Though the air was cold, the breeze was strangely gentle.
Atem was there.
He leaned back against the railing, slowly gazing up at the sky.
The city lights shimmered far below like faint grains, their glow softly illuminating his profile.
His expression was so fragile and beautiful it seemed it might crumble with a single breath.
“…I was looking for you.”
The words themselves were calm, but the urgency beneath them was something only Seto could hear.
Atem turned and smiled faintly.
“Sorry. I just felt like getting some air.”
His voice was gentle—yet within that gentleness lingered a distinct sense of distance.
Seto found himself at a loss for words, his gaze fixed on Atem’s profile. Bathed in moonlight, Atem looked like a bubble that would vanish if touched, and something creaked deep inside Seto’s chest.
Logic and duty no longer mattered.
Only the cry—I don’t want to lose this—began to take on a clear, undeniable shape.
“Atem.”
The name left his lips, hoarse.
Atem shifted his brow slightly and turned back.
“What?”
Seto drew in a breath, searching for words.
But before reason could seal his mouth shut, his heart moved first.
“…Don’t disappear on me.”
For a moment, it felt as if the night wind had stopped entirely.
Atem’s eyes wavered in surprise, and deep within them, a soft light slowly flared.
“I can’t disappear. That’s why I’m here… right?”
Seto didn’t answer. He simply didn’t look away.
That silence spoke louder than anything else.
Atem let out a quiet breath.
Somewhere deep in his chest, something began to make a soft sound.
A critical point lay ahead.
Both of them sensed it faintly.
“…I’m… here right now.”
That single sentence altered the contours of the world.
The wind swept through once more, and the stillness of the night returned.
But nothing was the same anymore.
Only after the words slipped from his mouth did Atem feel his chest tremble. The moment he said I’m here, he understood that something inside him had collapsed.
He had meant only to state the situation—yet it was far too close to being alive.
The world grew quiet.
Seto didn’t move.
He simply watched Atem.
From the point where their gazes met, the heartbeat began to quicken.
This is the one place… I don’t want touched.
Even as reason warned him of the danger, a contrary voice whispered deep within his chest.
Touch me.
That whisper was heavier than the silence of the Underworld, warmer than the wind of the living world.
Atem lowered his eyes.
He hadn’t spoken lightly.
The words had spilled out as if compelled.
The moment he declared I’m here, he faintly realized that he had lost the right to knock on the gates of the Underworld again.
Those who can return don’t speak that way.
As soon as he finally accepted that truth,
something creaked softly within his chest.
It hurt.
He didn’t want to run.
Seto didn’t take a single step.
He only continued to look at him.
That gaze captured Atem’s heart
more firmly than words ever could.
Why won’t he say anything?
The silence erased each escape route one by one—
as if, instead of cornering him,
it was making it impossible to go back.
A gentle wind passed through, stirring Atem’s hair.
The Underworld did not respond.
No matter how many times he called, the gate returned only silence.
Seto’s gaze traced that silence.
Running away was no longer permitted.
Atem drew in a breath.
His chest felt heavy—hot.
Something without words trembled in his throat.
Seto’s blue eyes seemed to say:
Then come here.
Atem’s gaze wavered.
When he looked at Seto, his heart shook.
When he looked away, his pulse grew louder instead.
Calm down. It’s nothing.
They only exchanged words.
He tried to think that—
but his body refused to obey.
It felt as though the ground beneath his feet wasn’t solid.
He was standing, yet some part of him was sinking.
Seto’s breathing echoed softly.
Just that sound felt unnervingly close.
Atem bit his lip.
He hadn’t been touched, and yet he couldn’t settle—
as if he already had been.
The moment that gaze seized his heart,
Atem’s world tilted, just slightly.
Seto slowly reached out.
He didn’t touch him.
But the warmth just before contact reached Atem all the same.
That warmth tightened around his chest.
The instant Atem looked away,
Seto stepped forward and, without hesitation, pulled him into an embrace.
“…Kaiba…?”
Atem’s body stiffened in surprise.
Seto said nothing, simply wrapped his arms firmly around that slender back.
Close enough to feel each other’s heartbeats.
After several seconds of silence,
Seto’s low voice fell between them.
“We don’t have to untangle this anymore.”
Atem caught his breath.
“…What…?”
Seto’s arms tightened, just slightly—
as if saying it wouldn’t matter even if this were the last time.
“If I’m an obstacle when you return to the Underworld,
then don’t return.”
It wasn’t logic.
It wasn’t strategy.
It was a truth spilled straight from his chest—
something like a confession, something like a wish.
Atem’s eyes trembled, his body quivering faintly against Seto’s chest.
“…Even if you say that, I—”
Seto didn’t let him finish.
He placed a hand at the back of Atem’s head.
“No matter how you struggle, this entanglement won’t disappear.”
The certainty in his voice left no room for argument.
Not an explanation—
a statement of fact.
“Why…?”
Why say such things.
Why look at me like that.
The question trembled. Atem’s eyes were faintly red.
Seto exhaled once, shortly.
Not resignation. Not hesitation.
Only resolve, carrying heat.
Atem could only wait for the words that followed.
The option of running away felt strangely distant.
The Underworld’s silence was heavy—
but Seto’s silence was heavier still.
It sank, unmistakably, into Atem’s chest.
A breath brushed his hair.
The distance shifted only slightly,
yet the density of the air changed.
Atem swallowed.
Tension crept into his shoulders; his fingertips trembled faintly.
“…Why…?”
The low voice cut through hesitation like a blade.
Atem lifted his face.
Seto’s blue eyes pierced straight through him.
That distance instinctively warned of danger.
He wanted to run, yet his feet wouldn’t move.
If he could refuse, he would have already.
And he knew—there was nowhere left to refuse from.
The Underworld did not answer.
No sign telling him to return.
No sign telling him to wait.
Nothing.
Then, in this silence—
where was he falling?
“…Kaiba…?”
Just saying the name made his throat tremble.
Somewhere in his awareness, he realized
his strength to resist was already beginning to melt away.
Seto steadied his breath and declared, firmly:
“I’ll entangle myself.”
The world lost its sound.
At those words, Atem’s chest tightened.
They resonated beyond understanding,
yet struck as undeniable truth.
Seto was no longer wavering.
What he wanted was to live now, together with Atem.
Atem lost his words, his heart trembling against his chest.
The entanglement of souls rose up,
surpassing reason itself.
And yet—
What crossed Atem’s mind was the gate of the Underworld.
It did not appear.
Still, the fact that it did not respond remained unmistakable.
I have to return, reason cried.
But from the moment he felt Seto’s warmth,
that voice had already begun to fade.
Memories of the days since coming to America surfaced in Atem’s mind.
Seto’s words.
Nighttime debates.
The heat of their duels.
The light on the sea.
The scent of the wind.
Laughter.
A back speaking of dreams—
and realizing, as he watched it, that he had smiled too.
Things he should never have been able to hold as one who was dead.
Being able to do what he wanted.
Letting himself enjoy things without restraint.
Making memories.
And—
Thinking of someone.
All of them should have been forbidden to him now that he was a dead man.
His chest burned.
He wasn’t being cornered.
He was being wanted.
That certainty breathed quietly in the depths of his heart.
If he were touched any further, he wouldn’t be able to go back.
He knew that—
and yet he couldn’t look away.
Seto’s fingertips stopped just before touching Atem’s cheek.
The distance was painfully close.
Within the silence, Seto’s breathing deepened once,
and the world tilted, quietly.
“What should I do…?”
At some point, he had begun to see this world as beautiful—
and to imagine a future that existed within it.
His heart throbbed, painfully so.
Was it resignation, or joy?
The emotion flooding him refused to be named.
“Don’t be afraid.”
Seto’s low voice fell close by.
Not a command.
Not an invitation.
Just a sound that wrapped around Atem’s trembling itself.
Being told not to be afraid only made the fear grow—
and yet, part of him wanted to cling to that voice.
It hurt.
And in his mind, a voice whispered,
drawing him in, refusing to let him go.
“No… I can’t… I can’t go back anymore…”
As if enduring the pain, Atem gripped Seto’s shirt.
A faint tremor ran through his fingertips.
His lips quivered slightly, his chest tightening hard.
His nose stung sharply; heat gathered at the corners of his eyes.
Desperately, he held together a heart on the verge of collapse.
“…I’m alive. Right now…”
The confession trembled,
then melted softly into the stillness of the night.
What remained was only the inescapable present.
Seto gently touched the reddened corner of Atem’s eye.
In the depths of those blue eyes, there was no question, no rejection—
only a quiet certainty that accepted the existence before him as it was.
“That’s right. You’re alive.”
Something deep in Atem’s chest stirred at the sound of that voice, and his lips trembled again, just slightly.
He couldn’t tell whether he was about to cry or trying to smile.
He only knew that something was unmistakably beginning to take root within him.
“…Because you’re so… alive. So vivid.
That’s why, before I even realized it…”
He had begun to live.
Seto slowly tightened the arms drawing him close.
He had never intended to let go.
Their heartbeats brushed together, their breathing intertwined, their warmth overlapping.
With a faint smile, Seto whispered,
“…So you’re tangled up too. In my life.”
Atem nodded faintly and rested his forehead against Seto’s chest.
The world fell silent, and the whisper of reason faded far away.
You must return.
The moment that voice touched warmth, it crumbled like sand and vanished.
He wrapped his arms around him and buried his face against Seto’s chest.
The sound of a heartbeat near his ear echoed a moment later deep within his own chest.
Still pressing his face there, Atem felt it—
the unmistakable pulse of life beating within himself.
He never wanted to forget this sound.
Not ever again.
He was alive.
Here. Without doubt.
“Kaiba… I’m alive…
I’m… this alive… I can’t go back…”
The moment those words spilled out, Seto leaned his cheek close and smiled.
“…You’re alive. You can stay here.”
Cradled in a warmth that reason could no longer resist, their time flowed quietly—
and yet, vividly.
The voice insisting he should return to the underworld was drowned out by the pounding of his heart.
Touching the brilliance of living, their souls intertwined—
slowly, but unmistakably.
Shock and hesitation were already far away.
All that remained were their heartbeats and their breathing.
“There’s no need to go back anymore.”
Seto’s voice was low, certain, and gentle.
Atem received those words and nodded faintly, understanding that his heart—and his body—were already entwining themselves with this moment.
Seto’s lips touched Atem’s forehead.
Lightly—yet with undeniable warmth.
“This is where you belong.”
It wasn’t a command.
Nor was it a plea.
Like breathing, natural and unforced, the distance between them closed.
Atem’s eyes shimmered, just slightly.
The feelings that had loosened deep in his chest surged forward like a tide.
Their lips met.
He was being touched—there was warmth, there was presence, there was life.
Reason no longer whispered anything.
In the stillness of the night—
in a place that was neither the underworld nor the living world—
only their existence was certain.
It felt as though their entwined souls had, for the first time, fully overlapped.
Atem let out a small, trembling breath and let it dissolve into Seto’s chest.
“…I’m… alive…”
“That’s right. You are. And so am I.”
The night wrapped around them quietly, yet densely.
For this brief moment, neither the laws of the underworld nor those of the living world could reach them.
There was only the warmth of life.
The lingering touch of Seto’s lips against his forehead spread as a faint tremor, filling Atem’s chest.
That warmth belonged to neither the light of the underworld nor to memories of the past.
Only the present moment existed—
taking shape as it pulsed, undeniably alive.
A night breeze slowly brushed between them.
And yet, the core of his body burned strangely hot,
as if he might melt away no matter where he was touched.
Atem lifted his face from Seto’s chest.
His eyes were faintly moist, their color no longer a deep red,
but soft—like a gemstone beginning to melt.
“…I think… the moment I touched your life,
I was drawn to it beyond all reason.”
It was less a statement than the shape of a truth leaking from the depths of himself.
Seto’s blue eyes wavered quietly, receiving each word as if weighing them one by one.
“Atem.”
Just being called made his chest ache.
The sound of his name struck his breastbone, as though it were proof that he belonged among the living.
Seto touched the corner of Atem’s eye, gently stroking it with his fingertips.
It was a tender gesture—
and yet, it carried a force that was strangely impossible to resist.
“A dead man unable to return to the underworld—none of that matters.
What matters is this: you are here, touching my world. That is the fact.”
Atem’s breath caught.
Something deep in his chest trembled, answering the words he had wanted to hear.
“Kaiba…”
What he had been holding back finally loosened inside him.
Heavier than the silence of the underworld, an inescapable now pressed in around them.
Seto suddenly drew Atem in by the shoulders, bringing their foreheads together.
Close enough that their breaths brushed.
So close that even the sound of their hearts seemed to mingle.
“Live. At my side.”
The words were neither an order nor a plea—
they were spoken with a clarity that offered a chosen future exactly as it was.
Atem’s throat quivered.
“…Is it… really all right… for me to live?”
The question finally spilled out—
fragile, almost childlike, yet carrying a deep, desperate longing.
Seto answered without hesitation.
“The moment you wished to live, it was already allowed.”
Atem’s chest throbbed hard.
Painfully so—undeniably.
“…I… want to live…!”
The instant he whispered it, strength drained from his knees, and Atem instinctively clung to Seto’s arms.
Seto caught him at once, holding him steady.
The night air changed.
As if responding to their choice, the moonlight poured down more densely than before.
Seto let out a soft breath and whispered by Atem’s ear.
“Live. From here on, I will be your ‘witness.’”
Atem’s eyes wavered wide.
“To everything—your living, your trembling, your hesitation. All of it.”
The voice resonated deeply in the stillness of the night, sinking slowly into the depths of Atem’s chest.
There was no escaping this.
But it wasn’t restraint.
It was a strange shackle of warmth—something closer to release.
With a trembling voice, Atem replied,
“‘A witness’… something like that…”
Seto smiled.
“You’ll need one. You, especially.”
Atem could only hold his breath, unable to move.
With the warmth of Seto’s hand alone, the world reshaped itself.
“There’s no longer any need to return.
No reason left to disappear.”
Seto’s whisper gently repainted the silence of the rooftop night.
And Atem quietly closed his eyes, then nodded—firmly.
“…I’ll live. With you. Here.”
Seto’s expression softened, just slightly.
In that moment, the knot binding the two of them sank so deeply that no one could ever unravel it again.
Epilogue
Entangled, and Allowed to Remain
The wind between the buildings faltered for a moment, then a warmer breeze slipped gently through.Beneath the sterile scent of the city, a hint of dry desert air faintly bled through.
Layers of distant memory stirred, and the lingering trace of Seto brushed lightly against the world.
When Atem lifted his face, a goddess appeared before him, as if from nowhere.
Brown hair swayed, and narrow blue eyes curved with unmistakable amusement.
“Well, well. I knew it—you two ended up like this after all.”
She smiled, clearly enjoying herself.
“Heh. No wonder you were turned away at the gate.”
“…Turned away?”
The goddess gave a small shake of her shoulders, mischief clinging to the edge of her words.
“Yes. I mean—look at you now. There’s no way you could return, is there?”
Can’t return.
Don’t want to return.
Want to stay here.
Atem glanced sideways at Seto.
Seto accepted the look in silence.
His expression barely changed, but something deep in his chest loosened, just a little.
The goddess went on.
“The underworld was more than ready to welcome you, you know. It waited three thousand years for your soul—everything prepared. But now? You’re tangled, and far too vivid.”
When Atem knit his brow slightly, her smile only deepened.
Seto stepped quietly to Atem’s side.
Not protecting. Not claiming.
Just being there.
“A vivid soul is proof that it chose life. Stronger than the laws of the underworld is the color the two of you are weaving together now. The gate won’t open.”
She traced her fingers through the air, weaving warp and weft from nothing.
“…So it wasn’t that I rejected it?”
“You could have,” she said lightly. “But you’re already tangled—thoroughly—in this side of life. Honestly, it’s beautiful.”
At her words, an answer slowly took shape deep in Atem’s chest.
“…Then perhaps I don’t need to return yet. For the length of that ‘margin of error’ called a lifespan… I can stay here. Entangled with this soul.”
The moment those words reached him, Seto lowered his eyes and accepted a profound, quiet satisfaction through nothing more than his breath.
The goddess’s blue eyes shone like stars.
“That’s right. That’s enough. Even if it’s only an error, even if it’s just a blink—any soul that chooses to live is beautiful.”
Her expression shifted slightly—more serious now, but still light.
“To my eyes, the two of you look exquisite as you are. So I won’t be sending you back for a while. If anyone complains, let the underworld do it. I’m on the side of now.”
She pointed at Seto, sighing dreamily.
“Honestly—impressive. You dyed him beautifully.”
Seto drew in a quiet breath and allowed himself the faintest smile.
Within it, unmistakably, was the will not to let go.
“So that settles everything,” he said calmly.
His voice was steady, yet carried a deep sense of relief.
The goddess lifted a finger and smiled with playful delight.
“Oh? It was settled from the start. Whether you survived or were summoned—it was always your choice.”
Atem’s eyes wavered slightly.
Seto blinked once, slowly.
The words she had spoken when he first came to America finally sank into his chest, belated but certain.
“…That’s true,” Seto said.
Satisfied, the goddess nodded, shrugged, and returned to her usual tone.
“So—about time you fired me, don’t you think?”
Seto replied evenly, though with a trace of amusement.
The dismissal procedure he’d once lost track of now came to him with perfect clarity.
“That’s right. You’re fired.”
“Fine. A CEO’s order, then.”
Like a desert wind, the goddess vanished.
All that remained was the softened air—and each other’s warmth.
Atem looked at Seto.
Seto met his gaze in silence.
Their tangled souls would never come undone.
And for now, that was enough.
Atem gently reached out his hand.
Seto took it in return, calmly, firmly—never letting it slip away.
The future was not yet written.
They would simply live the present—
for the length of that margin of error.
