Chapter Text
Ryusui is nothing if not adaptable and insightful.
He knows exactly what people assume of him, being the son of one of the wealthiest families in the world. Spoiled, arrogant, self-obsessed, a hedonist with more money than tact - he’s heard it all, often said to his face in more polite terms, whispered behind his back in less nice ones. And, to be fair, some of it’s true. He is spoiled. He is dramatic. He’s relentlessly ambitious and not the least bit ashamed of it. He’s of the opinion that self-awareness should count for something; at the very least, it gives him control over how and when he weaponizes his flaws.
So, when the petrification beam swept across the world, freezing life in a wash of blinding green, Ryusui wasn’t afraid. If anything, he was annoyed - he hadn’t even had time to strike a more secure pose. He could only hope the passing years didn’t break his arm off.
But waking up in the Stone World?
That’s not a tragedy. That’s a rebirth. Ryusui has been born anew, and he’s not one to let opportunities pass him by.
The moment he shakes off the remnants of stone, Ryusui can feel it - this is his world now. There are no empires, no corporations, no fathers with controlling hands on the reins of his life. No dynasties dictating his future. It’s a blank slate. Untouched and free.
Here, he can become exactly who he wants to be - and he already knows what that is: everything.
Of course, he’ll need a crew. He’ll need allies. Talent. Vision. He needs Francois. He’ll have to find Sai. He’ll need Senku Ishigami.
He recognizes it the moment they meet: Senku is essential. A once-in-a-century mind, razor-sharp and utterly unbothered by Ryusui’s cultivated charm or dramatic flair. It’s refreshing, honestly. Most people bend easily under the weight of his charisma; Senku barely spares it a glance. He doesn’t care how many yachts Ryusui owned or what schools his father bought his way into. He only wants to know what Ryusui knows, what he can do.
What a blessing, truly. For in the old world, he thinks it’s highly unlikely he would have ever even heard of Senku, let alone met him. The weird little gremlin would have locked himself up in a lab until he built a rocket, and then jetted off to parts unknown. He’s earth-bound with the rest of them for now, forced to share his genius.
He’s always been drawn to brilliance, and Senku burns with it - intense and focused, like a sun you can’t quite look away from. Ambition recognizes ambition, and Ryusui is nothing if not a connoisseur of greatness.
But he isn’t foolish.
He could chase Senku - there's an allure to him, a gravity that pulls people in. Senku’s charismatic, in the same way watching a star explode is awe-inspiring. It might hurt, but you can’t help but be drawn in. If Ryusui were a different kind of man, he might have flirted with him in earnest, tried to charm his way in, claimed him like any other coveted treasure.
But he’s not interested in playing a game he can’t win. Not when Gen Asagiri is already on the board.
Gen tries to act impartial, tries to keep things playful and neutral. But Ryusui sees the way his eyes linger on Senku just a second too long, the subtle tilt of his body when he stands near him, how every “casual” compliment is weighted just so. It's obvious, especially when you’re as versed in desire as Ryusui is.
And if Ryusui can’t have Senku’s attention in the way Gen wants it, well, he’ll settle for making Gen squirm. He’s damn aware that the mentalist manipulates him every chance he gets; might as well return the favor a bit, just to fuck with him.
A lingering glance here. A teasing remark there. A knowing smile when Senku brushes past. Nothing overt, nothing concrete. Just enough to watch Gen’s eye twitch or his smile tighten at the corners.
It’s all in good fun, of course. Ryusui isn’t cruel - just curious. A little mischief keeps things interesting. Besides, Senku’s heart isn’t a prize he’s chasing. He has other goals, bigger dreams. He wants the skies, the oceans, the very world itself. He wants civilization reborn in gleaming chrome and roaring engines, and Senku is the key to building that dream.
But Gen? Gen is a different kind of essential.
Gen grounds Senku in a way no one else can. When Senku’s spinning six theories at once or talking himself in circles, it’s Gen who threads the needle between chaos and communication. He translates science into story, pressure into persuasion. He smooths the path Senku forges with facts alone.
Ryusui’s noticed the way Senku looks at him, too. Not with the same open longing Gen wears when he thinks no one’s watching, but something quieter, softer. It’s in the way Senku listens when Gen speaks, even if he pretends not to. In the way he waits for Gen to catch up, even though he never waits for anyone. In the way, sometimes, when Gen grabs Ryusui’s elbow to drag him off before he can make too much trouble, Senku’s eyes follow them for just a beat longer than necessary.
Senku might not even recognize it for what it is. He’s too focused, too fast, too absorbed in building the next future to stop and take inventory of his own heart. But Ryusui knows what want looks like. He knows what affection looks like, even when it’s buried under layers of logic and denial.
He sees it.
And knowing is enough, for now. Ryusui is a patient man with ends of his own.
Because there are empires to rebuild, ships to sail, skies to break open. There are resources to gather, people to lead, a world to remake in the image of human ingenuity. Ryusui has plans, and every great plan starts with putting the right people in motion.
—
Ryusui plops down beside Gen with all the grace of a man who’s never once considered that he might not be welcome. Gen is seated near the fire, staring into it with a vaguely tragic expression, his plate of food untouched on his lap. A crime, frankly.
Francois had outdone themself again - perfectly seared meat, herb-roasted roots, even a little tart made with some kind of wild berry they'd painstakingly reduced into something sweet and sharp. In the Stone World, it might as well be a five-star banquet.
“You’re much too pretty to look so sad,” Ryusui drawls, and without hesitation, reaches for the plate. “If you’re not going to eat, I will. Wasting Francois’ food is the real tragedy here.”
Gen’s hand snaps out fast, slapping his wrist with a sharp whap. “Thank you, dear Ryusui,” he trills, voice syrupy sweet as he yanks the plate closer. “I was just getting to that.”
“You’ve been getting to it for ten minutes,” Ryusui says, leaning back against the log bench, unbothered. “Where’s your hot little scientist? I thought you two were joined at the hip.”
Around them, camp buzzes with low conversation and the clatter of tools being put away. The dinner hour is always a little chaotic - people swapping updates from the day's progress, voices bright with the shared exhaustion of hard work well done. The ship’s base frame has finally started to take shape, and the excitement is palpable. The future they’ve been chasing is starting to look real.
Francois is already prepping ingredients for tomorrow, humming softly over the campfire. A gust of savory steam rolls through the air. Ryusui breathes it in like perfume.
Gen wrinkles his nose delicately. “Not my scientist,” he mutters, though his tone betrays the sour tinge of longing. “He’s checking on dear Tsukasa’s cold coffin, making sure all the systems are still functioning.”
Ryusui hums, lips twitching into something like amusement. “Ah, right. Mr. Murder-Your-Genius, himself.”
He’s heard the story, of course. Ukyo had summed it up with that odd blend of calm statements and dry wit that makes it hard to tell if he’s being serious or not: Tsukasa Shishio. Hot. Dangerous. Killed Senku once. Would’ve done it again if he had the chance. Decided to take over the world. Somehow ended up friends with Senku anyway. Got stabbed. Now in ice storage until we can invent a sci-fi miracle and bring him back.
Hell of a resume.
“And you’re not jealous?” Ryusui asks lightly, tilting his head, watching Gen out of the corner of his eye. “Senku, checking in on a sleeping beauty like that? You don’t feel even a little competitive?”
Gen sighs, lifting a berry tart with the mournful reverence of a man about to eat his feelings. “I don’t compete with the comatose,” he says, biting into it. “Besides, there’s nothing to compete over.”
“Right, which is why you were staring into the fire like a maiden awaiting her man returning from war.”
Gen side-eyes him as he bites into his tart. “Do you need something, or are you here just to irritate me?”
“Can’t it be both?” Ryusui grins. “Maybe I just want to make some light conversation. We are two of the Five Wise Generals, after all. Teamwork requires camaraderie. Mutual respect. Friendship, even.”
“Mm.” Gen swallows, giving him a flat look. “You’re doing a terrible job of making me feel any of those things.”
“Oh, come on, Gen.” Ryusui nudges him with an elbow. “You love the attention. And I’m being sincere.”
Gen snorts. “You’re being something, but sincere wouldn’t be my first guess.”
Ryusui leans in slightly, dropping his voice like he's sharing a state secret. “Well, if you must know, I’m just keeping tabs on you. Making sure you're not planning to stage a coup just to control Francois’s baking.”
That draws a laugh - an actual, startled one, full-bodied and unguarded. Gen claps a hand over his mouth like it got away from him, eyes narrowing in mock accusation.
“Oh no,” he says. “You’re getting funnier. That’s dangerous.”
Ryusui spreads his arms with mock humility. “What can I say? I’m multitalented. Sails, economics, charm, comedy - I’m basically the total package.”
“Don’t forget your modesty,” Gen deadpans, wiping a tear of laughter from his eye.
And that’s the moment Senku returns.
He steps into the clearing, peppered with fires, with his usual casual stride, dust-smudged and tired from hours of labor and then hiking over to check on Tsukasa’s cryo-pod system (it's a glorified refrigerator, but that makes it sound fancier). His eyes flick automatically to where Gen is sitting, and narrow slightly when he sees the scene in front of him.
Gen, leaning back, laughing. Ryusui grinning like a devil who knows exactly what he’s done. Their shoulders too close, posture too easy.
Ryusui clocks the shift in Senku’s expression instantly - how his gaze lingers a fraction too long, jaw tightening just a touch. Jealousy isn’t exactly the right word for it, not from someone as logical as Senku, but Ryusui knows tension when he sees it, knows what it looks like when someone feels left out of a moment that should have included them.
Gen, of course, doesn’t notice a thing. He waves cheerfully. “Welcome back, dear Senku! Everything still freezing as it should be?”
Senku nods. “Everything is working as expected.”
“Good.” Gen takes another bite of tart and tilts his head. “You missed the fun. Ryusui’s apparently an aspiring court jester.”
“I prefer ‘renaissance man,’” Ryusui says smoothly, eyes flicking to Senku with just enough glint to needle him. “Though I do juggle.” He does, actually. He went through a phase where he was going to run away and join Cirque du Soleil until he figured out they didn't travel around on boats and that was a dealbreaker for his ten-year-old brain. He can still do a backflip, though.
Senku grunts and sits down on the opposite log, just a bit farther away than he usually would. He doesn’t speak again right away, just stares into the fire, jaw tight, arms crossed. Gen doesn’t seem to notice the shift in mood.
Ryusui can sense that he should probably go. “Well, thanks for the chat, Gen,” he says, getting up. “I should go find Kaseki to see how he’s feeling about the ship. Senku, see you later.”
“See you!” Gen chirps. Senku only grunts.
Ryusui is halfway into the shadows when Gen’s voice rings out, sudden and delighted: “A cola?! Senku dear, when did you have time to make this for me?”
There’s a pause. Then Senku’s dry voice, faintly rough from fatigue: “Don’t flatter yourself. It was just a byproduct of another experiment. Waste not, want not.”
Gen laughs anyway, bright and genuine. “Mm. I’ll take it.”
Ryusui glances back once, just briefly, catching the sight of Gen smiling into the fire, cola in hand, and Senku sitting stiffer than usual, the corners of his mouth twitching toward something unspoken.
And as he walks away, Ryusui finds himself grinning.
—
“They’re driving me nuts, too,” Ukyo says to him out of the blue one day while they’re in the balloon, looking for oil. The air is crisp, the kind of cold that sharpens the lungs with every breath. Above them, the sky stretches wide and blue, unmarred by clouds. Below, the earth lies quiet, a patchwork of forest and rocky ridges, stubbornly refusing to yield the dark gleam of the Sagara oil fields.
Ryusui lets the wind whip at his golden hair, one gloved hand resting on the rim of the balloon’s basket. He’d just finished a call to the ground - crackly radio static, then Gen’s smooth voice, Senku’s clipped responses. Another set of coordinates tested, another disappointment. The Sagara oil fields are still eluding them.
But disappointment is hard to cling to when the sky is this vast, when the horizon is his kingdom and the air tastes like freedom. Ryusui knows they’ll strike black gold eventually. They always do.
Ryusui barks a laugh, more startled than anything. “You mean Senku and Gen?”
Ukyo smiles faintly, sharp blue eyes never leaving the horizon. He’s an elegant man, Ryusui thinks - not just pretty, though he certainly is, with sharp features and that cool, quiet composure that never cracks. A man who sees too much, hears much more, and says only what’s necessary. Ryusui has always admired that kind of restraint, if only because it contrasts so sharply with his own excess. “Who else?” Ukyo says.
“It’s about as frustrating as Chrome and Ruri,” Kohaku calls up cheerfully, her voice carried on the wind. She’s hanging from the rigging below the basket, legs braced, hair streaming like a banner behind her. She claims the vantage point helps her see more clearly. Ryusui just thinks she’s a daredevil who enjoys testing everyone’s nerves.
“Ha!” Ryusui grins down at her. “At least with Chrome and Ruri, we all know what they want. Senku and Gen…” He gestures vaguely with one elegant hand. “That’s a game of shogi played in the fog. One move forward, three sideways, and always pretending it’s about strategy when it’s really about hesitation.”
Ukyo chuckles under his breath. “That’s one way to put it.” His gaze flicks briefly toward Ryusui, sharp and knowing. “And you keep nudging the board when you think no one’s looking.”
Ryusui presses a hand to his chest, feigning affront. “Moi? I merely appreciate the value of entertainment. And efficiency. If our illustrious scientist and his mentalist would just admit what the rest of us can already see, the air around here would be much easier to breathe.”
Kohaku laughs, the sound bright and reckless as she swings a little on the ropes. “Good luck with that. They’re both too stubborn.”
“Have they always been like this?” Ryusui asks. He knows he’s late to the party. By the time he was revived, Senku had already been awake for nearly three years, dragging the Stone World forward by its hair. There’s a war in their rearview mirror, and Ryusui only knows it through scraps and shadows, stories told around fires with the weight of old wounds.
“Yes,” Kohaku says immediately. “They did some weird modern day flirting dance the first time they met.”
Ryusui’s eyebrows climb. “Flirting dance, you say?”
Kohaku hums in thought, adjusting her grip on the rope. “Gen kept playing these mind games with him, and Senku just kept matching him. Senku immediately understood Gen could be a risk to him if he ratted out his survival to Tsukasa, but he also seemed convinced from the jump Gen wouldn’t, despite Gen claiming to be a selfish bastard. It was weird, but…” she tilts her head, remembering, “it also felt like they understood each other immediately. Like they were speaking a language no one else knew.”
Ukyo nods, eyes fixed on the endless blue above. “They’ve been circling each other like that ever since. At this point, I don’t think they even know how to talk about it. Gen’s convinced Senku can’t feel anything romantic, and Senku…I don’t think he even recognizes what he’s feeling.”
Ryusui laughs under his breath, leaning into the wind, eyes glittering with mischief. “That sounds like an excuse for cowardice to me. If I had that kind of connection with someone, I’d make sure the whole damn world knew it.”
Kohaku grins up at him, hair a wild halo. She’s every inch a wonder herself - muscular and fearless, a warrior who charges headlong into danger and only asks questions after. Gorgeous, too, though Ryusui admires her more for her spirit than her looks. “That’s because you’re Ryusui, the greediest man in the world.”
“Exactly!” he proclaims, tossing his head back, golden hair catching the sunlight like a banner of victory. “A man of the sea doesn’t hesitate when there’s treasure in sight.”
Ukyo’s mouth quirks, but he doesn’t argue. The balloon drifts on in silence for a few moments, carried wherever the wind wills. Below, the forests ripple like green waves, vast and unbroken. Somewhere out there, the oil lies waiting to be claimed.
And yet, standing in the basket with the sun blazing high, the ropes creaking, and his companions bantering at his side, Ryusui feels the familiar thrill of command and possibility humming in his veins.
And if stirring the pot between Senku and Gen is another way to pass the time until they strike black gold? Well, that’s just an extra reward for the world’s greediest man.
—
“You should tell Gen you want him to join us on the ship,” he says to Senku. It’s March, and the air smells of thawing earth and wood smoke. The ship is finally taking form - the hull complete, its bones strong enough to bear the ocean. Now the crew outfits it with the touches that will make the vessel more than a tool: bunks for sleep, shelves for storage, small comforts that hint at the promise of a life at sea.
Senku is crouched by what will be the goat pen, a wrench clamped in one gloved hand as he bolts a fence into place. He doesn’t glance up. “This journey is going to be dangerous, as you keep saying. The mentalist is capable of weighing the risks.”
Gen has been waffling for weeks about joining the crew. Sometimes he teases the idea of staying behind, citing danger, unpredictability, the sheer madness of throwing themselves into an unknown sea. Other times, he lets slip that he wants to go - that he’d hate being left behind, watching from shore. Each time, Senku grows quiet, and then finds an excuse to vanish - some experiment to check, some measurement to take - leaving Gen staring after him with a thin, unreadable smile.
No one would ever get anything done with Ryusui around, he swears. He’ll generously come to the rescue once more.
Ryusui exhales, long-suffering. “You’re brilliant, Senku, but gods above, you’re dense.” He folds his arms, watching as Senku tests the stability of the fence with a sharp tug. “We might be encountering all kinds of unknowns out there. It’s not a guarantee we’re the only people still standing on this planet. Gen’s negotiation skills will be extremely valuable if that’s the case.”
He doesn’t add the real sting of the thought: that Senku, for all his genius, becomes infuriatingly single-minded, cold, almost brittle without Gen to temper him. That it’s easier to negotiate with a hurricane than with Senku unless Gen is there to redirect the wind.
Senku finally straightens, brushing dirt from his knees. His expression is neutral, but his eyes flick sharp and quick toward Ryusui, as though he’s already guessed the words Ryusui left unsaid. “Gen isn’t exactly the seafaring type. If he decides to stay here, he’ll be useful.”
Ryusui smirks, tilting his head. “Useful, perhaps. But indispensable? No. He’s indispensable to you, and you know it.”
That earns him silence. Senku turns back to the fence, tools clinking as he adjusts a hinge, but his shoulders are a little too rigid, his motions a little too deliberate.
Ryusui lets the silence stretch, the only sounds conversation from people doing something in the hallway and the faint hammering from the outside of the ship. Then, softer, almost companionably, he says, “You can play it however you like. But I assure you - ” his grin sharpens like the curve of a sail catching wind - “he’d look much better standing beside us on deck than watching from shore.”
Senku glances at him, red eyes narrowed. “Ah, back on your quest for eye-candy,” he says, and scoffs. “The ship’s going to be full of beauties; you don’t need Gen to look at.”
God, just admit you want to be the only person looking at him, Ryusui thinks. Beauty is beauty, and even an idiot could tell that Gen is attractive.
“Okay, fine, think of it this way. Maybe Gen just wants you to acknowledge he’s useful and you want him there.”
He should start charging for this, honestly. Translating buried emotional truths into plain language for stubborn, emotionally constipated geniuses? That’s high-tier consulting work.
Senku drops his wrench into his pocket and tugs his gloves off, the leather squeaking faintly as he strips them free. His hands are raw, knuckles reddened from work, nails chipped from days spent building, tinkering, fixing. He flexes his fingers once, then levels Ryusui with a flat stare.
“Gen doesn’t need me to spell things out for him,” he says finally, voice low, steady. “He’s smarter than you give him credit for. If he wants to come, he’ll come.”
Ryusui chuckles, unbothered. “Ah, but there’s the flaw in your argument. Sometimes even the cleverest and most perceptive men want to hear it said aloud.” He steps back, cape catching in the breeze, grin wide and knowing. “And between you and me, he’ll follow your voice farther than any map I could chart.”
Senku doesn’t reply - he just stands there, gloves dangling from one hand, lips pressed into a thin line.
Ryusui turns on his heel, satisfied. The hammering from the shipyard rings out clear across the thawing fields, mingling with conversation and the quiet crackle of distant fires. The ship is nearly ready. The sea awaits.
And Ryusui thinks, not without some amusement, that by the time the sails are raised, one of these two stubborn fools will have to say something.
—
Never mind, these two are fucking idiots.
Senku somehow got Gen onto the ship, but Ryusui is willing to bet his entire fortune that the only reason Gen agreed to come was because he’s in love with Senku and couldn’t stomach the thought of him dying somewhere far-off without him. They’re still at it, too: pining sighs, longing looks, all the quiet, desperate energy of a romance staged in silence. If they weren’t so damn busy trying to save humanity, Ryusui would have locked them in a closet already and refused to open the door until something happened.
He can’t understand it. Every day is a roll of the dice, every battle one breath from their last. Why waste time circling each other in silence when the whole world could vanish tomorrow?
They’re on Treasure Island. Ryusui has had the honor of being the first person who has been petrified twice - twice! - and brought back to life. He’s still riding the high of that, despite the fact that Ibara is a wily bastard and Mozu is a terrifying one.
And then - his third petrification, this one deliberate. His body locked in stone, to buy Senku the time to finish the calculations he needs - to measure the speed of the green light, to claw out survival by numbers.
Being trapped inside the stone is both exhilarating and terrifying, largely because he can’t see or feel anything. He can think, though - he can think about wind and sails, the rush of freedom, the thrill of gambling with his own life. But he can’t see, can’t know if everything worked out . Every second is a blind wager, and the darkness presses against him, heavy and unyielding.
The shatter comes sudden and violent. Revival fluid eats through the stone, and Ryusui gasps as air tears into his lungs. He’s alive. He’s whole. He’s free.
And Senku is standing right in front of him, pale and shaking. His labcoat is ripped and he’s stained with blood. There’s soot smeared across his cheek and rage in his red eyes. His hair is even wilder than usual, framing his face like a stormcloud.
Ryusui has never seen him like this, not once. He’s not sure anyone has. It’s an alarming sight. Senku tends towards sarcastic, even-keeled. Ryusui has never even seen him raise his voice. The anger radiating off him is so strong that it nearly bowls him over.
“Where’s the danger?” Ryusui asks, voice hoarse but already searching for the fight.
Senku’s jaw works, his hands trembling, his eyes burning with a fury Ryusui has only seen in flashes. He points, and his voice comes out like steel tearing.
“That fucker took Gen’s head!”
Ryusui’s gaze snaps to where Senku is pointing.
Gen’s statue stands at the edge of the clearing, hand raised high, just as they’d planned - to give Senku a clear reference point for his calculations, an approximate measure of time and velocity. His kimono is flapping in the breeze, sleeve bunched up around his shoulder.
But the head is gone. Clean gone.
“What happened?” Ryusui asks urgently. He knows his own statue was shattered at some point, and he’d been pieced together. But they need the head for that.
“Ibara smacked it off,” Senku says, low and venomous. His voice has never sounded less straightforward and logical and more like murder. “He took it with him.”
“We’ll get it back,” Ryusui promises, voice calm despite the hammering of his heart. Senku nods tersely, already moving. He tosses the receiver earring over his shoulder at Ryusui, who snatches it out of the air without breaking stride.
“Get the drone,” Senku orders, taking off at a run. Not fast - Senku is the type who reads about exercise benefits but doesn’t apply them - but he’s driven by urgency, by that single-minded, almost reckless focus that comes from protecting someone he cares for.
Ryusui picks up on what’s unsaid. Senku clearly has a plan. His mind races, hoping that Senku’s rage won’t blind him to the risks. Logic usually keeps him safe, keeps him precise, lets them worm themselves out of issues that could have killed them. But the person he loves is at risk, and even the sharpest mind falters when fear presses close.
Ryusui dashes through the forest, snagging the drone along the way, and positions himself out of sight, just below the cliff where they staged that ambush against Mozu. The thrill of battle feels hollow now - this isn’t a game. One of his friends is genuinely at risk. Senku is so angry that it could risk more of them. The wind roars around him, deafening, but he can pick out the edge of Senku’s voice, taunting Ibara, goading him.
Ah, he thinks. He’s trying to get him to toss the Medusa.
Ryusui’s fingers tighten around the controls. The makeshift drone hovers next to him, buzzing faintly. Thank God Senku picked this cliff - the noise of the wind and waves masks the drone’s whirring. Ibara, paranoid as he is, wouldn’t recognize the sound the way a modern man would, but he’s smart enough to recognize a threat to himself.
Then it happens. Snatching the Medusa out of the sky, Ryusui feels a surge of exhilaration like nothing else in his life. Every ounce of tension, every second of calculated risk, converges into a perfect moment. The device is in his hands, safe, retrieved.
The wind whips past him, the sea roars below, and for a brief instant, he allows himself a smile. This is why he lives for the gamble.
But then something yanks him off balance. He’s pulled upward over the edge of the cliff, landing beside Senku, who is clinging to the carbon-fiber cable linking the controls to the drone. Senku still has the cell phone on his back. Ibara has the other end of the drone controls. Gen’s head lies on the ground near him, the stone mouth frozen open, eyes blank.
The old bastard is strong, Ryusui notes with a rush of adrenaline, but Senku is of little use in a strength competition, especially when rage has tangled with his focus.
Ibara snarls, then grins cruelly as an idea clearly occurs to him. “You seem pretty fond of this pretty boy,” he calls, voice sickly sweet. “How do you like this?!”
With a stomp, he slams his foot down on Gen’s stone head. It cracks sharply in half, and Ibara cackles, repeating the motion. One-legged, balancing against two boys who can barely lift him, and still powerful enough to crush solid stone - Ryusui’s mind spins, a mix of fear and admiration.
The sound that rips from Senku is inhuman. Pure, raw fury. His shoulders are so stiff that if Ibara yanked now, he might tug Senku’s arm out of the joint.
“Let go,” Ryusui hisses into Senku’s ear. Then, calculating, he shouts, “Five meters! Five seconds!”
They let go of the cable. The drone snaps free, and the Medusa skids toward Ibara. He stumbles backward, almost tripping on the shattered fragments of Gen’s stone head. Quick as lightning, he whips off his hat and throws it at the Medusa, deflecting it, but Ryusui doesn’t hesitate. He moves, instinctively, precision born of years on the water and living as hard as he can and countless gambles.
He unhooks the earring mid-lunge and tucks it into the loops of the Medusa just as he feels the familiar cold spread over his body. Stone. He’s petrified, again. Fourth time. He swallows irritation and a grudging thrill; the second round was fun, the fourth is just getting ridiculous.
Time stretches. He can’t be cold, but he is bored, chilled to the bone. He hopes Senku is okay. He hopes that they’ve won.
Then, as sudden as the petrification came, he feels warmth flood back through his limbs. Revival fluid courses over him, burning through the stone, and he gasps, air tearing into his lungs. He’s alive. Whole. Free.
Ukyo is bent over him, drips of the revival fluid still clinging to the rim of his earthenware bottle. “You okay?” he asks, hands warm and gentle, fingers roughened from archery and work in the field. He helps Ryusui to his feet with the wiry strength that really only shows when he’s doing archery.
Ryusui blinks, adjusting to light and wind, to the distant roar of the sea. They’re still on the cliff. Daylight floods the world, though he can’t tell if it’s the same day or if his petrification has stretched time in strange ways. Senku’s ability to track time would have saved him this confusion, if only he had it.
His eyes immediately lock on Yuzuriha. She’s crouched over Gen’s head, delicate fingers working with tools and sticky restorative compounds, moving with calm, deliberate precision. Her shoulders are tense beneath the focus, but her movements are efficient and exact. Taiju, farther back, hauls the rest of Gen’s stone body over carefully, as if carrying a treasure.
Senku is beside her, wound tight like a drawn bow. His jaw clenched, hands twitching at his sides, eyes sharp, unrelenting.
Ibara lies petrified nearby, tangled in the ropes and scattered remains of his own failed attack. His eyes are locked on the sky as though he’s still plotting the next move.
Ryusui exhales and allows himself a grin. The Medusa earring trick had worked, it seems. Another gamble in Ryusui’s favor.
“Did you enjoy yourself?” Senku asks, voice clipped but edged with tension, eyes flicking to Ryusui, still sharp and alert.
Ryusui smirks, brushing sand and grit from his gloves. “As much as one can enjoy being turned into an immobile statue for the second time in a day. Which is to say, not particularly.”
Senku doesn’t answer immediately. His gaze snaps back to Gen’s head, carefully being restored by Yuzuriha. The faint lines of worry around his eyes, the tension in his shoulders, betray everything he refuses to admit aloud.
Ryusui watches, quietly admiring the scene: Yuzuriha working with meticulous care, Senku wound tight with protective urgency, and Gen, even in half-rebuilt stone form, waiting to rejoin them. The danger is gone, for now. The calculations, the gambles, and the teamwork have won the day.
And yet, Ryusui thinks these idiots are probably not going to make a single move towards each other.
“I can’t believe we won,” Ukyo mumbles as Yuzuriha holds up Gen’s head critically, like she’s ensuring she has ever little piece in place.
“Yeah, that Ibara was bad news,” Ryusui says. “And strong. He crushed Gen’s head with his foot.”
He didn’t keep his voice low enough. Senku flinches, jaw tightening, hands twitching slightly. Ryusui feels a pang of guilt for reminding him.
“How goes depetrifying everyone else?” he asks Ukyo.
“Good,” Ukyo says. “Francois is making dinner with Amaryllis right now. Senku churned out a ton of revival fluid so we’re in the middle of reviving everyone. You shattered in the fight with Ibara, so we had to put you back together first.”
Ryusui likes Ukyo - likes him a lot, really. There’s something steady, calm, quietly competent in the way he moves, even when the chaos of battle has just passed.
“Alright, we’re ready to reattach Gen’s head,” Yuzuriha says suddenly, and Senku starts as Taiju hauls over Gen’s statue. He doesn’t move as Yuzuriha carefully puts Gen’s head in place.
Ukyo gives Ryusui a small, knowing smile before walking over to Senku. From a small satchel at his side, he produces a bottle of revival fluid and holds it out. Senku stares at it, tense, as though the act itself requires more courage than any battle he’s ever fought.
“I think Gen would want to see you first,” Ukyo says quietly. Senku lifts his head, eyes narrowing in his trademark calculating way, but there’s something beneath the sharp edges - something almost like hesitation.
“Don’t be getting cringy at me, sonar-man,” he says warningly, his voice tight. Ryusui doesn’t know Senku that well - to be frank, he’s a difficult bastard to get to know - but you don’t have to be that familiar with him to notice the way his hands tighten on the bottle, the way he glances at Gen.
Yuzuriha steps away as Senku steps up, swallowing hard as he uncorks the bottle. He tilts it, spilling it on Gen’s head like he’s blessing him.
Revival fluid spills over Gen’s head, hissing softly as it eats away the stone. It’s almost ceremonial. The light blooms outwards in golden waves, casting harsh shadows and blinding brilliance across the cliffside. The glow is warm, electric. It makes Ryusui’s breath catch every time.
When the light fades, Gen blinks, shakes off the last remnants of stone, and meets Senku’s gaze. They stare at each other wordlessly, the air thick with unspoken things, tension coiling tight enough to strangle. Ryusui allows himself a small, hopeful smile. Maybe this is it, he thinks. Maybe now they’ll finally -
Senku punches Gen in the arm.
“Ow! ” Gen yelps, clutching the spot. “Dear Senku, what was that for?!”
“You always have to make things difficult, mentalist,” Senku mutters, arms crossing tight over his chest. “Do you know how long it took to glue you back together?”
“I was stone!” Gen wails, throwing his arms up in exasperation. “I didn’t know what was happening! What even happened?! ”
Senku doesn’t answer, but Ryusui catches it - the faint twitch at the corner of his mouth, the brief, almost imperceptible softening around his eyes.
He shakes his head. These two are ridiculous.
Ukyo chuckles behind him, arms folded. “You know,” he says under his breath, “they seem deeply committed to being as difficult as humanly possible about this.”
Ryusui leans back against a nearby rock, hands on his hips, watching the pair bicker like nothing just happened. “If this is what passes for romance among geniuses,” he murmurs, “I suppose it’s entertaining, at least.”
Ukyo smirks faintly. “Entertaining is one word for it. Maddening’s another.”
“It’s a soap opera without a predictable schedule,” Ryusui says, and is thrilled when Ukyo laughs so hard that he ends up snorting. Senku sends him a narrow-eyed glare, like he knows Ryusui is making fun of them. Gen, meanwhile, just looks bewildered, until Senku abruptly snatches his wrist and drags him away, apparently to help explain everything to the Treasure Island villagers and secure their allegiance.
Whatever, Ryusui thinks, watching them go. They survived, and won. And no one’s ever accused Senku of having emotional intelligence, anyway. Maybe this is what caring looks like for him - irritation, confrontation, and dragging someone into a lecture they didn't ask for.
As the sun sinks low, casting warm gold across the field, the party begins to swell. More of their friends are revived with each passing hour. Francois and Amaryllis pass around food and drinks, Nikki wrestles Magma into a laughing headlock, and music drifts faintly in the air from someone’s handmade flute. Suika is busy explaining glasses to the children of Treasure Island. Laughter rises up around the fire like sparks. The Medusa lies dormant and contained - one part of the mystery solved.
By the fire, Gen and Senku sit side by side - shoulders nearly touching, talking in low voices despite the celebration bursting to life around them. Every now and then, one glances at the other during a pause in conversation, always in the space when the other isn't looking. Ryusui watches them, a faint warmth blooming behind his ribs as he drinks next to Ukyo.
Maybe - just maybe - those two fools will never say what they feel. Maybe they’ll go on arguing and dancing around it, the same way they always have.
But for tonight, at least, they’re alive. They’re here.
And even if neither of them ever says the words out loud, Ryusui thinks, anyone with eyes can see they’ve already chosen each other.