Conquering Heroines: Starting From A World Of Zombies

"A hot air balloon?"

Ryuji raised an eyebrow at Robin. In his memory, the One Piece world was… wildly inconsistent when it came to technology. On one hand, Vegapunk was out there building androids and biochemical weapons. On the other, ordinary folks didn't even have access to tractors, let alone fertilizers. Most of the islands looked like something out of medieval Europe.

So the idea of hot air balloons? Sounded a little far-fetched.

But in this world… maybe not impossible.

"That's right. A hot air balloon. There's no direct way to travel by ship from the Grand Line to the other seas. Both Sea Kings and the Calm Belt are deadly. The Calm Belt doesn't have any wind—and it's packed with those monstrous sea creatures."

Robin gestured as she explained.

"So if you want to travel safely, your options are: use the World Government's official routes—which we obviously can't touch—or go through black market traders. Or, if you're feeling bold, hitch a ride on a merchant's airship. But the air routes are tightly monitored by the air forces. That's why hot air balloons are the safest and most discreet option."

As she spoke, she began steering the ship, her Flower-Flower Fruit sprouting extra limbs to handle the controls with uncanny ease.

Ryuji watched her movements for a moment, then blinked.

"Wait, aren't you part of some organization? Is this okay?"

If he remembered right, Robin was still affiliated with Baroque Works, working with Crocodile. HE had no clue how strong Crocodile was right now—he didn't have any of the three types of Haki, as far as he knew—but Ryuji didn't exactly feel confident he could win in a fight.

"It's fine. If anyone asks, I'll just say it's related to a mission. Maybe I'm gathering intel or something. As long as I send occasional reports, no one will look too deep."

Robin said it casually, and Ryuji figured she probably knew what she was doing. Honestly, he didn't care much what she planned to do in the long run.

As the boat sailed forward, Robin glanced at Ryuji—who had pulled out his phone and was idly scrolling—and asked curiously:

"Say, Ryuji… why are you going about things this way?"

"What way?"

"You could've just lied. Told me the power I brought back was dangerous. Or said you could permanently revive my mother. Or seduced me, played with my heart. There are far more manipulative ways to get what you want."

Robin looked at him, genuinely puzzled. She knew by now that Ryuji was a good person—or at least not malicious—but she couldn't understand why he was using such awkward, indirect methods.

"Because of responsibility."

He answered without even raising his head.

"I don't have the strength yet to take on that kind of responsibility."

He was sure of that.

His goals were simple and clear: to fuck girls, to grow stronger, to live longer, and to make himself less likely to be killed easily.

As for everything else? That could wait.

He didn't mind taking on the role of a husband, or even raising children someday. But to stay with one woman forever, to give up all others? That wasn't him.

There were too many beautiful women in the world.

"More importantly, this is better for everyone. The people who interact with me won't be hurt too deeply. No bitter feelings, no unnecessary heartbreak. I hate seeing others cry over me."

He paused for a moment, memories flickering behind his eyes.

"Because… I used to cry too."

"Back on Earth, I got hurt—badly—because of someone else's mistakes. I know what it's like to be deceived by feelings. So even though I've embraced my desires, I refuse to force anyone. Using love as a tool is despicable. People who talk about love without also talking about mutual benefit and equality… are just hypocrites."

Robin slowly began to understand what kind of man he was.

"So, you use this method? A method that will make people dislike you?"

Ryuji nodded.

"Because lies will always be exposed. And when you're staring death in the face, lies won't help you."

He opened his palm, as if holding something fragile.

In society, he'd told countless lies. Especially during blind dates—he'd learned to spot deception easily because he'd been lied to so often.

It was a cruel truth: only those who've been deceived can recognize liars.

It wasn't until he'd brushed against death itself that he realized something important.

No matter how often he told his parents he was going to the gym…No matter how many times he said, "I'm healthy, I'm doing fine."The reality was—he wasn't. Not even as fit as good as Erina.

Lies cannot bring about anything real.

"You are such a weird person. You don't seem to believe in love at all?"

"That's right."

Robin was a woman who walked between shadows and sunlight, straddling both law and crime. She could handle the truth.

"Love is the longest-lasting, yet also the most fleeting thing there is. In my world, I've seen too many tragedies caused by love. I still believe love exists, sure—but I don't believe I will find some eternal, unwavering love. I don't think I'll ever be the kind of man who gives up everything for one woman. So I prefer the certainty of shared interests."

That was how Ryuji had always lived. Love was too unpredictable. So he chose to build things on mutual benefit instead.

"I see… Sounds like you've seen a lot of broken love stories."

Robin nodded.

"People are fickle. Maybe someday I'll meet someone who makes me want to give up everything. But clearly… that day isn't today."

He gave her a thumbs-up with a confident grin.

"I love all beautiful women. Even if she's not my wife, as long as she doesn't stand against me, I'll treat her politely. After all, beautiful women tend to give birth to beautiful daughters—and that's enough for me. If her husband were to die unexpectedly, and she was willing to have children with me, I'd be glad to raise her and her daughter in luxury for the rest of their lives."

Nico Robin was speechless.

She didn't think he would go so far as to kill someone just to claim a widow, but the fact he spoke so brazenly about taking care of grieving mothers and their daughters after tragedy... well, it was a level of shameless honesty she hadn't expected.

Still, from a practical standpoint, in this harsh and cruel world, maybe having someone like him—someone willing to assume a partial husband's responsibility—could be a kind of salvation. Especially for those who had lost everything.

Survival, after all, was the most important thing.

"…You're surprisingly honest about your desires," Robin commented as she tucked her hair behind her ear. "But doesn't that make it hard for people to truly fall in love with you?"

"Because there will be villainess in my future harem too, you know," Ryuji replied confidently. "And women like you, who live in the gray zone. I love dealing with the so-called 'bad girls.' You think love means anything to people like us?"

He'd already planned it out: if he ever ended up in worlds with infamous female antagonists, there was no way he'd let them die easily. Lock them up, tame them, and—why not?—experiment with the more extreme side of things. He wouldn't feel bad about it, not like he would with the kind-hearted ones.

Sweet, innocent girls deserved gentle love. But the wicked? They needed something different.

"I see... different women, different treatment?" Robin mused, resting her chin on one hand. Then, her eyes narrowed slyly. "So, how would you treat me? Let's say you wanted to keep me by your side—what would you offer?"

"Benefits and safety," Ryuji answered without hesitation.

His instincts told him that honesty was the only currency that would work with a woman like her. Someone who'd been betrayed, someone who trusted only tangible proof.

Even Luffy had taken forever, and countless near-death experiences, to earn her trust. Ryuji didn't have that kind of time or energy.

"You've shown me what benefits look like," Robin said smoothly, crossing one leg over the other. "Now tell me—what about safety?"

"If I'm around," Ryuji declared, giving a confident thumbs-up, "you'll never die. Even if it's just to protect your ass, I'll bring you back to life."

"…You really have a way with words," Robin muttered, her expression unreadable.

"I admit, this conversation was a bit of a failure," she sighed. "Anyway, I need to keep steering the ship, so here—take this with you for the night."

With a snap of her fingers, something materialized in her palm: a body. Specifically, a torso—missing the legs, head, and arms—but warm, alive, and breathing.

"…Couldn't you at least include the head?" Ryuji asked, staring at it in disbelief. "Feels kind of like… a silicone doll."

"It's your fault for not giving me any emotional investment," Robin shrugged. "And duplicating a full human body is a bit above my ability."

She turned her head away, already reaching for a book.

"Now go get some sleep. Your shift starts at six—I'm not staying up all night to watch the sea alone."

He sighed and carried the headless torso back to the cabin.

He had to admit, for all the strangeness of the situation, girls in the world of One Piece really had insane waistlines. It made him question whether their organs even fit properly inside.

He walked into the cabin and unceremoniously tossed Robin's cloned body onto the bed. With a casual wave of his hand, a ball of cold water leapt flew out from an opened water bottle, flowing unnaturally into the body's intimate areas to provide lubrication.

Outside, the real Robin suddenly clamped a hand over her mouth. She could distinctly feel something cold and foreign swirling inside her, stretching passages that should never be stretched.

"That bastard!" she gasped, tumbling from her chair. Only by desperately grabbing the ship's wheel did she avoid collapsing completely onto the deck.

Then came a new sensation—the same invasive chill, but now from behind. To her horror, Ryuji was somehow forcing water upward through her bowels using some unknown method. Robin bit her lip hard enough to draw blood as she watched him through the cabin window, nodding approvingly as the cloned body's abdomen began to swell slightly from the internal flooding.

Pregnant women are off limits. 

No matter how much of a scumbag he is, he won't do it with a pregnant women.

"But it's okay like this!" Ryuji muttered to himself. 

Anyway, this thing can't hurt Robin, so it doesn't matter.

He marveled at his own ingenuity. While he couldn't yet manipulate water for combat, controlling nearby liquid for... creative applications was well within his capabilities. With the smug satisfaction of a mad scientist, he inserted a 4cm diameter plug to prevent leakage before beginning his "assault."

Meanwhile, Robin...

"I'm going to die... I'm really going to die..." she whimpered, now fully prone on the deck. The conflicting sensations of discomfort and building pleasure warred within her, compounded by the cognitive dissonance of Ryuji's normally gentlemanly demeanor versus his current actions.

As she fumbled with her shorts to prevent another embarrassing accident of getting her clothes wet, but the next moment Ryuji's voice carried from the cabin: "Hmm, maybe a bit more?"

Ryuji summoned another stream of water, directing it into the pussy.

As he continued his vigorous movements, he abruptly manipulated the water, forcing it deep into that passage.

Outside, Robin's head snapped up with a sharp cry. Her legs trembled violently as overwhelming pleasure wracked her body, and before she could stop herself, she yanked down her shorts. A torrent of liquid gushed out uncontrollably, splattering everywhere in a humiliating display.

Hearing her cry, he rushed out—pants still undone—just in time to witness Robin sprawled on the floor, legs splayed, her body convulsing as fluid continued to spurt from her.

His gaze flickered between Robin—eyes rolled back, utterly overwhelmed—and the cabin behind him, where the now-uncontrolled water he'd been manipulating erupted from three different openings. Then back to Robin, who was currently spraying from two.

"So… you could feel that?"

Robin's body twitched helplessly, too far gone to respond. Shame, the triple assault of sensations, and the sheer embarrassment of being seen in this state had pushed her to her absolute limit. She desperately wanted it to stop—and while two of the streams eventually tapered off, the main one refused to relent, pulsing stubbornly as if determined to wring out every last drop.

Ryuji quickly took off his shirt, draping it over Robin's exposed form.

Robin buried her face in her hands.

Even though he'd seen everything before—even though she'd crafted bodies for him to use—this was different. This was her. Her real body. And the raw, unfiltered humiliation of it made her skin burn.

Worst of all? She'd taken off her shorts specifically to avoid this kind of accident. Yet here she was—drenched, exposed, and utterly at his mercy.

She couldn't even bring herself to answer him, too mortified to meet his eyes.

And his pants were still down. She didn't dare look at the very thing that had just wrecked her.

"You should've told me sooner…" Ryuji muttered, finally tugging his pants back up. "If I'd known you'd feel it, I wouldn't have gone that far."

At most, he'd have stuck to an enema.

Robin said nothing, quietly steadying her breathing. The silence stretched until, finally, she pushed herself up.

"It's fine." Her voice was eerily calm as she picked up his discarded shirt and used it to cover herself before pulling her damp shorts back on. "Do whatever you want. Even if I feel it, it won't harm me. So… go ahead."

Ryuji scratched his head. "Uh… I'm not really in a hurry today—"

He was embarrassed. Being caught mid-experimentation had killed the mood. He might enjoy pushing boundaries, but this was new even for him.

Robin picked up the book she'd dropped, using it to shield her expression. "This was the deal, wasn't it?" Her tone was firm. "No matter how… intense it gets, I'll endure it. So go on. If you truly hate lies, then keep your word."

Ryuji hesitated.

"But—"

"I'm fine." Robin's gaze flicked downward pointedly. "And you're still hard. Do you want my mouth? Or…" She paused. "The real me? That's possible, but save it for when we don't need anyone on duty."

Ryuji exhaled, throwing up his hands. "…Fine."

He turned back toward the room, and the moment he was gone, Robin finally let out the breath she'd been holding.

She'd almost cried.

Once sure he wasn't returning, her fingers drifted to her lower abdomen—then to her pussy, tracing the very spot that had betrayed her so spectacularly.

She bit her lip.

She'd acted indifferent, but the truth was…

Robin wasn't sure how to feel about Ryuji's sudden restraint.

Except for one thing.

She was not satisfied.

Unsatisfied desires.

_ _ _ __ _ 

Ryuji locked the door behind him, his gaze fixed on Robin's clone sprawled across the bed. The replica was flawless—every curve, every breath, even the subtle flush of her skin under his stare.

But this time, he knew the truth.

She could feel everything.

A wicked smirk tugged at his lips as he approached, his fingers trailing up the clone's bare thigh. Outside, he could hear the real Robin's breath hitch.

"You really should've told me, Robin," he murmured, gripping the clone's hips and yanking her to the edge of the bed. "But I guess you wanted this, didn't you?"

Ryuji's cock pressed against the clone's her entrance, already slick from the water he'd forced inside her earlier.

"Let's see how much you can really take."

Outside – The Real Robin's Torment

Robin's knees buckled as Ryuji slammed into her clone without warning.

"Nngh—!?" She barely stifled a cry, her fingers clawing at the ship's railing. The sensation was overwhelming—every thrust, every inch of him stretching her clone's body echoed through her own.

Her thighs trembled, her neglected core aching with each brutal snap of Ryuji's hips.

"F-Fuck…!" she hissed, biting her lip hard enough to draw blood.

She could feel him—all of him. The way his cock dragged against her clone's inner walls, the way his fingers dug into her hips, the way his breath hitched when she clenched around him.

And worst of all?

She loved it.

Inside – the cabin

"You're so fucking tight," Ryuji growled, slamming into the clone harder, watching her tits bounce with each thrust. "Is this what you wanted, Robin? To feel me ruin you without even touching you?"

The clone's body jerked as Ryuji angled his hips just right—hitting the G spot with ruthless precision.

Outside, Robin shrieked, her legs giving out as her own orgasm ripped through her.

"A-Ah—! R-Ryuji—!!"

Ryuji smirked, feeling the clone's walls convulse around him.

"That's it," he purred, leaning down to bite the clone's neck. "Cum for me, Robin. Both of you."

Aftermath – 

Later, Robin lay panting on the deck, her body still trembling from the aftershocks.

Ryuji stepped out of the cabin, stretching lazily.

"So," he mused, looking down at her. "Still think clones are a safe alternative?"

Robin met his gaze, her usual composure shattered.

"…Shut up."

Ryuji just grinned.

"Next time," he whispered, leaning in close, "I'm taking the real you."