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The world, once reduced to ash and stone, had learned how to bloom again.
It bloomed tonight in silk banners and glass chandeliers, in polished cutlery and pressed suits painstakingly reconstructed from memory and science. It bloomed in the quiet luxury of something humanity had once taken for granted.
A wedding.
Taiju cried before the ceremony even began.
No one was surprised.
He stood at the altar in a suit that strained at the shoulders, weeping openly as Yuzuriha walked toward him in a dress she had sewn herself, thread by thread, bead by bead, reviving not just fabric but tradition once lost to time.
Civilization had been rebuilt using platinum and synergy.
But tonight, it was rebuilt in vows.
Senku stood among the guests, tie straightened, posture composed, hands in his pockets like he'd rather be holding test tubes than a champagne flute.
He had attended thousands of pivotal moments in humanity's revival.
Rocket launches.
Revival ceremonies for Old World Officials.
The Moon mission briefing.
Yet somehow this soft, human ritual felt more foreign than all of them combined.
Marriage.
A social contract far older than recorded science.
Emotion codified into permanence.
Inefficient.
Messy.
Irreversible.
An after thought to a brain of his caliber.
And yet...
His gaze drifted across the rows of seats.
You sat three rows ahead, slightly to the left.
You'd dressed simply compared to Yuzuriha's brilliance— Adorned in soft fabric, understated, something practical even in elegance— Lavender suited you, he thought.
You laughed quietly when Taiju sobbed louder mid-vow, covering your mouth as Yuzuriha shot him an affectionate, exasperated look.
Senku watched the way your shoulders shook with contained laughter.
Catalogued and filed it somewhere dangerously personal.
He'd always assumed there would be time.
Time had been the one resource he'd fought hardest to give humanity.
Time to live.
Time to choose.
Time to love.
He just hadn't calculated what would happen if you used that time... without him.
The ceremony ended in applause, Taiju lifting Yuzuriha clean off her feet as he cried into her shoulder.
Petals, real petals, were thrown.
Music began.
Tables filled.
The reception glowed warm and golden beneath strings of lantern lights.
Senku found himself cornered near the head table when Kohaku approached, dressed more formally than he'd ever seen her— Kudos to Amaryllis, she taught her well.
Kohaku crossed her arms, “Well, Senku?” eye sharp despite the celebration.
"Well what?" he replied.
She jerked her chin toward the newlyweds. "Now that the world isn't ending every other week... you planning to settle down too?"
He snorted under his breath. "That's your opening line? Seriously?"
Kohaku huffed a laugh, though her eyes stayed sharp.
"Chelsea cornered me earlier. Kept asking if I had anyone in mind for marriage." She rolled her shoulders like she was shaking off the conversation.
"I told her I had... other interests."
Her gaze drifted across the reception without subtlety, landing-briefly—on a certain pink-haired nurse before sliding back.
Senku caught it immediately.
Luna, eh?
His lips twitched. "Marriage as some grand post-apocalyptic milestone, huh? Didn't think that a lioness like you would fall for that novelty."
"Nice try." She crossed her arms. "Don't dodge the question."
He adjusted his tie-an unconscious habit when thinking.
His eyes swept the room.
Laughter.
Dancing.
Hands intertwined.
You, across the hall, speaking to Gen near the drink table.
His gaze lingered a fraction too long.
"Yeah," he said finally. "I'd consider it."
Kohaku blinked. "You already have someone in mind?"
"Have for a while."
Her brows rose. "And you never said anything?"
He huffed softly, gaze drifting back to his glass.
"Years of survival campaigns tend to delay personal side quests. Every time there was space to... pursue it, something tried to wipe out humanity again."
"So now?"
"Now there's time."
The words felt heavier spoken aloud.
He straightened his tie again, almost formal.
"Figured I'd finally act on it."
Kohaku followed his gaze this time.
Toward you.
Understanding dawned instantly.
“...You should go follow them," she smiled approvingly.
Senku nodded once.
A simple, logical order at the time. After all, directness leaves little room for failure.
He moved through the reception hall, weaving past dancers and tables, scanning for you.
You weren't near the bar anymore.
Not near the head table.
Not with Yuzuriha in the bridal circle.
He stepped outside onto the garden terrace.
The wedding had spilled into the surrounding grounds-flowerbeds illuminated by hanging lanterns, pathways lined with soft candlelight.
You had helped design this garden.
Of course you'd be here somewhere.
He followed instinct more than sight.
And then he heard your laugh.
Soft.
Private.
Different from the one you used in crowds.
He stopped just before the archway of climbing roses.
You stood beneath the lantern glow.
Gen stood close-closer than casual conversation required.
He held a small cluster of flowers, freshly cut.
Not arranged purposefully.
Not preserved.
Just... chosen.
He plucked one free and reached up, sliding it gently into your hair.
You giggled, ducking your head.
For a moment Senku simply watched, brain refusing to categorize what he was seeing.
Then you spoke.
"Do you think we should tell them tonight?"
Gen tilted his head. "Tell them what, dear?”
You hesitated, fingers brushing unconsciously over your abdomen.
The gesture was small.
But Senku's observational instincts had been honed over millennia.
He noticed everything.
Even now.
Especially now.
"The pregnancy," you said quietly.
The word hollowed the air.
You let out a breathy laugh. "I mean... everyone's gathered already. It'd be good timing, wouldn't it?"
Senku's pulse-normally steady as metronomic machinery-stuttered once.
Pregnancy.
You, and Gen.
The conclusion forming before emotional comprehension could catch up.
Gen's expression softened into something real and unmasked.
Senku thought it was unbecoming for a man who claimed to be a liar through and through.
He watched as Gen shook his head gently.
"No," he murmured to you. "Let's keep this little secret between us a bit longer." He stepped closer, hands settling at your waist like they belonged there.
"I'd rather have you all to myself," Gen added, voice low. "Even if it's only for a few more days."
Your eyes softened in a way Senku had never seen directed at him.
Then Gen kissed you.
Slow.
Certain.
Familiar.
You melted into it without hesitation.
And something inside Senku-something he'd kept tightly pressurized for years-ruptured soundlessly.
He stayed where he was, half-hidden by roses and shadow.
Watching.
Like observing a chemical fire he'd arrived too late to stop.
He'd always believed you were tethered to him in some quiet gravitational way.
You'd stood beside him through every scientific breakthrough.
Every sleepless night.
Every insane plan that should've gotten you both killed.
You understood him without translation.
Matched his pace.
When others fell behind, you didn't.
He'd thought—
No.
He'd assumed—
That when the dust settled...
You'd still be there.
Waiting at the lamppost while he finished saving the world.
But now he saw it clearly.
The glimmer in your eyes when you looked at Gen— Forward.
Certain.
Leaving.
You weren't tethered to him.
You never had been.
You'd just walked beside him until your paths split.
And he hadn't noticed the divergence until now.
Gen pulled back slightly, resting his forehead against yours.
You smiled-soft, radiant, painfully happy.
Senku stepped back before either of you could see him.
Retreat came automatically.
Like withdrawing a hand from flame.
He walked the garden path in silence, lantern light blurring at the edges.
Inside, music swelled.
Guests laughed.
Taiju shouted something emotional and loud enough to shake glassware.
Life moved forward.
Without waiting.
He paused near the terrace railing, overlooking the reception.
Tried— scientifically, methodically—to imagine alternatives.
Someone else beside him.
Another partner. Another future.
The thought felt like trying to wear someone else's skin.
He didn't want to start over.
Didn't want to undress emotionally for a stranger. Didn't want to memorize someone new's habits, their scent, the cadence of their thoughts. Didn't want to kiss another neck and pretend—
Even in hypothesis-it felt wrong.
He was never yours—not in name, not in promise—yet his mind returned to you with a devotion that felt dangerously close to belonging.He exhaled sharply.
Annoyed at the direction of his own mind.
Annoyed that after conquering petrification, space travel, and planetary threats...
He was losing a battle to something as primitive as heartbreak.
Below, couples danced.
He watched Taiju spin Yuzuriha, both of them laughing through tears.
Children— Revived, reborn— They ran between tables. Mirai joined in as Tsukasa's watchful eye stayed behind to watch.
Future generations.
Continuations of the past marching forward.
He imagined, briefly, what it would've been like—
Children with your eyes.
Your laugh.
Your stubbornness.
Then the image twisted involuntarily—
Soon, he’ll catch the light in your eyes meant for someone else. A child that carries another man’s blood. A family that will never bear his name.
And in that gaze, he’ll see the life he was never given.
You smiling the same way you had in the garden.
The thought hit harder than any physical blow or bullet he'd taken.
"I don't want," he muttered under his breath, voice barely audible beneath the music, "to build a future that pretends you never existed."
Emotion leaked through despite suppression. It's irrational and stupidly inefficient.
Yet, here he stood, a human— Susceptible to the unavoidable hurt rooted in rejection.
He dragged a hand through his hair, composure cracking only in solitude.
For years he'd postponed this variable.
It was ironic, he had always mocked Taiju for his reluctance— ‘Waiting is moronic,’ he preached— Yet seldom did he ever consider taking his own advice.
Told himself survival came first.
Confession could wait.
Connection could wait.
Love— if that's what it was— could wait.
But time, the resource he'd fought hardest to restore...
Had been spent by you in ways he hadn't accounted for.
You'd dreamed of something warmer than endless, sterile laboratories.
You'd patched the holes in your sweater while he was busy rebuilding the loom.
And when you'd looked at him— Wondering if he'd ever turn toward you fully— He'd been too focused on the stars to notice. Now he stood planets away while you built a life on Earth.
Footsteps approached behind him.
He didn't turn.
Gen's voice came lightly, but not mocking. "You saw, didn't you?"
Silence answered.
Gen joined him at the railing, both looking down at the wedding below.
"I was wondering when you'd figure it out," Gen said softly.
Senku scoffed faintly. "Figure what out?"
"That you were late."
The bluntness stung more because it was accurate.
Senku didn't respond.
Gen studied him from the corner of his eye.
"You know," he added, quieter now, "they waited. Longer than you think."
That made Senku's gaze flicker.
Gen smiled faintly—not triumphant, just honest.
"But you were always looking somewhere else. The Moon. The Medusa. The future" He paused. "And eventually... they chose a future that chose them back."
The words settled heavy between them.
No hostility.
No gloating.
Just truth.
Gen pushed off the railing.
"We will tell everyone," he said. "Just... not tonight. Tonight belongs to the newlyweds."
He walked back toward the lights, stopping briefly beside Senku.
"For what it's worth," he added gently, "they did love you. In their way."
Did.
Past tense.
Gen's gaze dropped to the lantern light spilling across the terrace floor before he spoke again.
"I'm sorry, Senku. And I mean that." His voice lost its usual lilt, stripped of performance. "You know me-l've been at your side longer than most. I've watched you chase impossible horizons since the day we met."
He exhaled softly.
"They would've followed you to the grave, you know. Both of us would have. If you'd asked, if you'd turned around even once and said the word... there wouldn't have been hesitation.
A pause.
"But even devotion has a threshold."
His eyes lifted-not cruel, not triumphant. Just honest.
"When you walk ahead of people long enough, eyes forward, never stopping... the ones behind you start to notice who's still walking beside you."
He folded his arms loosely, voice dropping to something almost regretful.
"We didn't mean for it to happen. It wasn't planned. It was just... proximity. Shared silences... Waiting... It all soon turned into understanding."
Another breath.
"And eventually, we stopped looking at your back... and started looking at each other."
Gen's expression softened, sympathy threading through it.
"You were always the sun, Senku. Impossible not to orbit."
He glanced back toward the garden, where laughter faintly carried.
"But even suns can be too distant to keep you warm forever."
Then he left.
Senku remained alone on the terrace long after the music swelled and faded into slower songs.
Long after the bouquet was thrown.
Long after couples drifted closer together under dimming lights.
He watched the life he'd saved unfold in front of him moved forward relentlessly.
And for the first time since petrification ended...
He felt left behind by the very future he'd built.
Not because humanity didn't need him anymore.
But because you didn't.
He straightened his tie again— This time a habitual armor.
Composure sliding back into place molecule by molecule.
Science still neded him.
The world still needed progress.
Feelings could be compartmentalized.
Buried.
Studied later.
But as he finally turned to rejoin the reception—
His eyes drifted once more toward the garden path.
And the quiet realization followed him back into the light:
Saving humanity had been calculable.
Repeatable.
Provable.
But losing you—
That was an equation he'd never learned how to solve.