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lilacxquartz · 3 months ago

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CHASING HUMANITY • kenjaku x f!reader

masterlist • ao3 • previous chapter • next chapter • chapter directory

plot: ever since 2015, a serial killer had been plaguing japan with no lead on who it might be, until you witnessed something you shouldn’t have.

summary: upon retrieving you from naoya, the two of you plan to give him a gruesome send off.

content warnings: violence, naoya being naoya, smut. if you’re a new reader, this is a yandere fic set in a no curses au.

Chapter 10. Sweet Honey

Kenjaku pulled up at the exact spot of the abandoned lot that was agreed upon. The night was suspiciously quiet, save for the crunch of the gravel beneath his rolling tires. Shit, he must have truly cared about you after all, it seemed, because he was willingly playing into a trap just to get you back.

The corrupt cop’s car in question wasn’t too difficult to find. The opposing vehicle had its fog lights on, blinding him slightly in the glare of his own window. That much had to be intentional to obscure his vision. A dirty move on that guy’s end, but he wouldn’t be pulling out all the stops unless he was worried, which meant Kenjaku probably had an advantage.

And as he left his car, he slammed the door shut but he didn’t lock it. He didn’t confront Naoya first either, letting the silence linger and stew. If the cop wanted to talk, then he could talk. It’s just that Kenjaku knew better than to needlessly engage, because to communicate was to give leverage, no matter how small.

Predictably, Naoya couldn’t resist getting the first word in, either. “Damn,” he said after letting out a low whistle, exiting the vehicle, leaving the engine running so the lights could stay on, “and here I thought you were going to be a now show.”

Kenjaku resisted a jab, choosing not to reply instead. It was easier to let Naoya talk first to get what he wanted to say out of the way. For this reason, he kept his expression purposefully vague, even when you were dragged by your arm out of the car and into view. The lights were still bright and blinding, but he could tell from your build alone that it was indeed you. Oh, but the way that Naoya’s fingers curled around your arm, keeping you possessively close, irked him just a little bit. He knew that this guy was there first, technically, but his hands no longer belonged anywhere on your body at all.

You, all the while, struggled slightly under the tug and drag of his palms, trying to yank your way out of his suffocating grip the entire time.

Naoya spoke up again, airing out his insecurities into the open. The engine hummed and muffled his voice slightly, but he could still be heard just fine, “Quit struggling, you cheating bitch,” he demanded as his fingernails dug into your flesh.

Kenjaku didn’t react for the time being, not even when your discomfort was steadily rising. Instead, he kept his cool, looking for a window of opportunity. He noticed a gun holstered in the cop’s belt, taking note that this guy, to his lack of surprise, was the type to boast an open carry. Such a thing was rare in Japan and never needed, so it struck him as odd at best. Most disputes could be settled with brute force. If he took his gun with him, then his initial assessment was likely correct. This guy was worried. That, or he wanted to kill him off to regain his pride.

As a result, he couldn’t resist scoffing at the thought. In his eyes, your little affair with him was justified because you also left the guy by your own will. This meant that you were essentially broken up. You were never obligated to stay in that doomed relationship to begin with, and if he had to truly consider it, it must have been that bad if you were willing to follow after him. He remembered that night perfectly well. You were willingly tagging along with someone who threatened to bury you alive.

As weird as you were, that detail was a little bit too concerning to just ignore.

Given also that he was able just now to put himself into your shoes, it proved that he did in fact truly care about you. Otherwise, he wouldn’t have taken the effort to come all the way out here and get you out of the mess that followed after you. Mahito could take the fall for this one too; he could be detained. The plan made sense in his mind. Should he kill off someone from the police who followed him from one of the sites of the more prolific, prior murder, then it would look bad enough on him to become a prime suspect. Beyond that point, Kenjaku would lay low for a while, just enough to figure out where to go from there on.

He’d still ‘study’ humanity, though; that much was still in his books, but he knew better than anyone that to succeed in something as risky as this, he had to be patient.

After this whole mess, he would have to buy out yet another run-down property, cash upfront, again. He did have a fair amount saved up just in case, though, and in the worst case scenario, he could moonlight as a conman if need be. Killing wasn’t the only thing that he was capable of. Besides that, Geto's donation fund for the cult he ran served him quite well too, enough to feed two whole people.

(For now.)

Kenjaku finally brought back his focus to you, noticing how twitchy you were. He couldn’t blame you, given that you were forced to endure this guy’s company for the better part of the night. It couldn’t have been easy. He struggled with empathy; he could admit that much, but he understood certain reactions could be triggered from situational context. An abused partner, for example, in the company of a volatile ex was not a good combination.

For that reason, he knew that it would benefit you to be extracted as soon as possible. He felt better when you were close by anyway, still enjoying the thrill of being the only one who could decide your fate, and right now, he wanted you to remain alive. With him. Near him. God. He hated it so much earlier on, back when he thought you were gone and dead. What were you doing to him, huh?

You twitched again, and this time from Naoya’s end, there was more of a reaction than before. It seemed that his patience was quickly dwindling. How unfitting for a man from his job position, but then again, it wasn’t all that unsurprising. You lost your patience too, that much was a given as well. You pulled away from him in an instant, stomping at his foot and then tore forward, Naoya however was quicker than you and grabbed you by the wrist again, with his other hand snapping to his gun, tucking the barrel right beneath your neck.

You froze.

Kenjaku paused too, but somehow maintained his composure.

Though, he couldn’t resist a jab.

“Is she really that much of a threat to you that you have to have her under gunpoint?”

Naoya, to his prediction, wasn’t as composed. Far from it, as a matter of fact. A muscle ticked in his cheek as he attempted to mirror Kenjaku’s contrasting calm demeanour, but it was clear that he struggled to keep himself in check. His voice came out strained as a result, rougher than the smooth talk he offered before, “Yeah, right. At this point, she’s just bullet fodder anyway.”

Kenjaku smiled, knowing that he had gotten under his skin. He knew that Naoya must have been hurting from his pride taking a hit, from the betrayal of both leaving him and getting with someone like him. Indeed, Naoya’s weakness was being forced to face his insecurities—his vulnerabilities, and now, Kenjaku couldn’t resist digging him deeper into the pit of no return.

“Ah, yes of course – because she cheated, right?” he asked, folding his arms and keeping his eyes trained on the ground so as not to wear out his eyes from the blinding glow of the headlights. He could see that you were being held under gunpoint, but there was no new visual information beyond that detail, so he could spare the strain. “Kind of hypocritical though, isn’t it?”

Naoya took the bait. “What the fuck are you talking about?”

Kenjaku scoffed. “Don’t play dumb, it’s just me and you out here, and well…” he trailed off, blinking towards you before sinking his sights back to the ground. Kenjaku did his own homework on Naoya Zenin before, so his secrets weren’t safe from him. He paused, thinking back to a particular set of photos he had come across. “You’re going on and on about infidelity, but what about what happened at a certain fundraiser last autumn? Tell me, have you told your wife-to-be about those photos you worked so hard to keep contained?”

He couldn’t see his expression but the silence told him everything he needed to know.

“No response?” Kenjaku called out. “What a shame, and you here I thought you had more wit in you beyond being a trust-fund cop who gets to hold a gun in his spare time, pointing it around to have a semblance of power. Was that woman somehow the exception? I wonder why—perhaps—it’s only men who get to have the final say, right?”

Naoya finally reacted, although physically. He tightened his hold on your body to the point where his grip felt bruising and almost crushing. The weight of the gun that dug below your jaw caused you to choke slightly and then after a moment of tense silence, he finally said something.

“In truth, I actually don’t give a single shit,” he snorted, “she could have slept for the whole town for all I care, but what I don’t appreciate is abandonment.”

Kenjaku didn’t buy the reasoning, though. “Oh? Is that really it, though? Given how stale things must have been, I would have thought that you would be thrilled to finally have her gone from your hands. Ah. Something tells me that it may have stalled some type of deal instead. Pretty standard for a marriage of convenience, isn’t it? Did her going missing get interpreted as her making a run for it? Did her absence… embarrass you?”

Before Naoya could reply, however, you elbowed him clean into his gut, causing him to drop the gun out of reflex and fire a stray round into the night sky. Of course, this guy didn’t have the safety on. That could have become ugly fast had the weapon been angled in any other direction.

Within a flash, you made a break for it into the lot, quickly losing yourself in the maze of cars that made up the area. Kenjaku didn’t call out after you, recognising that you weren’t likely truly gone, or so he had hoped. He knew that this wasn’t one of those instances that you could hope to talk your way out of—Naoya wasn’t reasonable—he was volatile instead. Your best bet was to lose him and leave the guy to be dealt with by somebody who knew what they were doing.

Oh, what trust you had. It was delicious.

“Fuck!” Naoya grolwed, seething out in pain as he was promptly forced to let you go. Just as he was about to chase after you, however, Kenjaku intervened. He kicked the gun away, too, aiming to settle any remaining matters physically.

“Not so fast,” he hummed, kicking Naoya back down to meet with the dirt, pressing his heel right against his chest. “Don’t you think it’s fair to give her a little space, hm? It can’t have been easy for her to be around you for more than a whole minute.”

“Fuck off,” Naoya sneered. “What if the bitch snitches?”

Kenjaku couldn’t help but laugh. “To whom? The cops? Yeah, I don’t think she’s going to involve herself with the likes of you again.”

Naoya paused, realising just how ridiculous the sentiment was, but he still refused to fully back down. “If she’s gone, though, then you came out here for nothing. You realise that right?”

“You’re trying really hard to hurt me, aren’t you? You must be desperate,” Kenjaku shrugged, “I don’t really care what she does, though,” he lied, “but something tells me that she’s not as gone as you think. I know that if I was her, that I’d want to come back to see my former piece of shit abuser die.”

“Cute,” Naoya scoffed, “you think you’ll get away with killing me?”

“I’ve gotten away with much worse,” he replied, “but it’s not going to be me who kills you, don’t worry. I’m going to make sure that this one is carried out by her entirely. You should be begging for it to be me, honestly, because if it were my decision, I’d deal with you much sooner.”

At that, Naoya tried his best to launch himself forward, but Kenjaku refused to let him break away, and after a moment, you indeed came back, panting as you tried to catch your breath. Kenjaku flicked his gaze briefly to you, unsurprised that you had returned, but also relieved at the same time that his hunch was correct. He slipped you the keys to his car, murmuring out a set of instructions, “Get me whatever you find in the boot, okay?”

Without questioning him further, you nodded once before quietly slipping away for the time being. The first step he had in mind was detainment, and then the rest would follow once he had you come up with something that would be, without a doubt, a deeply unsettling demise for the guy. Kenjaku shuddered at the thought in anticipation, already both dreading and looking forward to what you could come up with. There was something about you that he liked a lot that went beyond just the intimacy that you would both exchange on occasion, and that was that he just genuinely liked being around you.

Having only had just one relationship before, however, he supposed that there wasn’t much to compare it to. Hook-ups were different; those were temporary. He otherwise tried the whole normal approach to things, but it never got him very far. He never understood the need for exclusivity before you, either. The prospect of his ex-wife cheating on him didn’t fill him with any emotion at all other than sheer indifference. Considering how rarely he touched her at the time, he wouldn’t blame her for doing just that, in fact. The only reason he lived through that relationship for as long as he did was to keep up the illusion of normalcy. People asked less questions when one’s life was conventional. Maybe he wouldn’t have been fine with it if it was too obvious, though, because that much would shatter the facade.

However, for you to return to this guy and to maintain the same sort of lie, potentially sleeping with him in order to become pregnant and eventually birthing him with a couple of snotty-nosed heirs to continue that same cycle… filled him with seething hatred instead. For you to spread your legs for such filth made him want to hurt someone. An idea passed through his mind at the thought, though, a new case study. He remembered just how bad the noodle shop guy made him feel, and he wanted to study his relationship with you if he had the opportunity to do so.

That study he would keep a secret from you, though. Just to keep it as authentic as possible.

Sure, though. He’d let you exact your revenge, but ultimately, Mahito would be taking the fall for this.

As soon as you were back with everything in tow, Kenjaku immediately got down to business, wasting no time at all in tying Naoya up and muffling any vocal protests by sealing his mouth up with a stray cloth, tucking the guy away into the boot of his car. As soon as he was locked inside—out of sight and out of mind—he couldn’t help but reach out and grab you, reeling you closely against him, pinning you up against the side of his car.

For a good, long moment, all he did was stare at you.

You blinked up at him with alarmed but trusting eyes, not flinching at all as his hands came to rest on the parallel sides of your face to lean in and kiss you. This was all new territory for Kenjaku too, kissing was something that he never understood either, but with you, it felt almost right. He deepend it as he delved into it, trying to make it last for as long as possible to make up for the time lost before his breath ran out. After tonight, he found himself craving you; wanting to touch you, taste you and so much more.

In fact, he wanted to—maybe not here—or maybe right then and there, Naoya hearing the whole thing be damned, because what a great big ‘fuck you’ to him that would be; to hear a woman come undone without the need to fake her orgasm to have it be over with, and for it to be his estranged fiancé at that.

The jokes write themselves at this point.

You, in turn, of course reciprocated the kiss, having no reason at all to turn away, pulling him closer into your body as you did so. The car creaked under the pressure as Kenjaku leaned closer, fumbling with his robe to free his straining erection. At the feel of his arousal poking at your body, your legs jumped up to wrap around his waist, shuddering at the sensation of him grinding against you, hastily guiding himself inside with not a second to spare. From the moment he pushed into the slick walls of your welcoming core, he couldn’t help but let out a low, pleasured groan.

Kenjaku didn’t wait before he surrendered into a determined, longing pace, his hips rutting into your cunt, hilting him with each plunged stroke at an almost crazed fervour. His hands plamed against the surface of the car, leaving you perfectly lodged between him and the hard, unrelenting metal. His lips then found yours again, unable to stay parted away from you for too long.

Your hips rolled in sync with his own, accepting everything that was offered. The adrenaline settled deep into your bones just moments ago from the potential threat of Naoya pointing a gun at you; the thrill fading away from fear to make room for a deep surge of want.

You reeled him in closer again, tucking your arms beneath his own as you wrapped up to hold around his back. Your ankles overlapped to keep him pressed into place, all the while your tongue wrestled away with his. The cool night air quickly enveloped you in a shivering chill as a cold sweat broke out over both of your bodies from the exertion alone, but neither of you could stop just yet.

Though, Kenjaku wasn’t going to last long like this, even if he was determined to make the reunion one not to forget. His thumb found your clit, the pad of his finger rubbing feverish circles around the bud as he encouraged you to chase your release first. Your legs soon twitched as as a result before rendering to an involuntarily quiver, feeling a deep warmth rise in the depths of your core. Kenjaku took this as a good sign, taking the initiative to double his efforts.

Your breath hitched suddenly from the acceleration as he pounded into you with wild abandon, feeling his cock kiss deep into your insides again and again. You were getting close; he could tell—the way your breaths were coming in sharp, ragged gasps were big enough of a hint. Above that, your body was coiled tight, ready to snap at any moment and before long, you were gasping for air, your breathy moans loud amidst the dead silence of the night.

With a tight, longing pull, you squeezed your legs hard around his body as you found your peak, feeling as your body relaxed into a pleasant, radiating warmth that washed over you. Kenjaku followed suit almost immediately after, as if holding out for you to finish first. His hand reached over to let you into the side door, carefully pushing you over into the backseat before collapsing over you to recollect himself.

For a moment, he actually forgot about Naoya in the back until he was reminded with the sounds of his muffled struggle coming from the confines of the trunk off to the side. He let out a deep breath, choosing to ignore the sound, but also, not caring at all in the slightest for the other man’s wellbeing. All he cared about in this moment was relaxing in this much needed moment with you beneath him, all flushed and happily fucked-out.

He wasn’t going to lie, though, the prospect of losing you chilled him to the core—scared him, even. He wouldn’t let himself go again; he wouldn’t lose himself to whatever bullshit his mind conjured up again, but above that, he wouldn’t let anyone else get close to you. Not even his closest allies in a pinch. Whether you liked it or not, you were stuck with him at this point. He’d tether you to his hip, if he had to.

All the while you still shuddered the last throes of your violent orgasm away, bathing in both the aftermath of the bliss that lingered, but also the deep affection that you couldn’t help but feel. What you had experienced tonight was technically, in your eyes, the highest compliment; you were chased after, sought and then saved. You weren’t just a fleeting face to a killer, nor a keepsake to bury, but worth every second of trouble. So in the end, you too, developed such an intense attachment to him that when compared, could rival his own.

As a result, you weren’t about to stray from him either.

He was stuck with you too.

~~~

The car journey back to wherever it was that he had in mind next, was a long and eerily quiet affair. No such words filled out the otherwise quiet trip, letting the comforting company be enough for fulfilment alone.

Though, after a while, Kenjaku briefly turned to you before focusing on the road again, he wanted to admire just the way you were. His voice came out low as he spoke, slightly hoarse from what had happened just half an hour ago. He tried to keep it sounding soft though, as not to startle you out of your relaxed state of mind, “So, what do you think we should do - with him?” he asked, nodding back to gesture towards Naoya who was still in the trunk.

You blinked, suddenly tensing. Somehow, you forgot about his unwelcome presence stashed up in the boot. For some reason, you were happy to just forget about his existence, but you also supposed that you didn’t mind the prospect of erasing him altogether either. In a way, it was funny, because if someone asked you if you would kill your fiancé just months ago, then you would have responded with something along the lines of not having it in you. Now, though? You had the fuel of all the hatred in the world.

“Well…” you trailed off, trying to think of something suitable, “he always did say that I let him get away with everything because I’m just too sweet, so maybe I have an idea.”

Kenjaku glanced at you again, watching your features change as a smile crept onto your face. You definitely had some kind of worrying idea in your mind, didn’t you? In a way, he felt apprehensive at the notion, feeling almost hesitant to request that you elaborate. Curiosity was his biggest clutch though, so he couldn’t help but pry.

“...Go on,” he probed.

You seemed almost giddy to share your idea and like always, it filled him with unease.

“I’d like to drown him in honey,” you bluntly suggested.

Kenjaku blinked. “And what, do I look like a beekeeper to you? Where on earth do you propose that I get a drown-worthy amount of such a thing?”

You scoffed at his reaction. “Okay, fine. Any type of syrupy substance will do. Hell, it can even just be sugar and water if anything. As long as it’s thick and hard to swallow. Let me repeat that. I want him to choke and sputter on the damn thing. Bonus points if it’s hot and scalding. I want his lungs to feel as though they’re being filled with molten tar.”

Kenjaku’s complexion quickly grew somewhat pale as he listened to you trail off, growing slightly afraid of you and your ideas. He couldn’t lie though, something about the way you spoke about ending Naoya’s life in such a horrific way turned him on. He already had come to that conclusion before, though, but now it was just something he could freely admit. That you ignited something deep within him that nobody else in the world was capable of doing, and that alone, was far more exhilarating than anything else.

“Or maybe, we could just pour liquid cement over him?” you suggested, lightening up your tone. “I feel like that’s an easy way to make him disappear.”

“Oh no, no, I like the honey idea more,” he finally replied, dispelling the cement idea for now because he wanted the body to be found so that Mahito could take the fall, just as he had already planned. “I’ll make it happen, just for you.”

You nodded at his promise, seeming pleased. At such encouragement, you continued to reveal your plan in segments, enjoying the way it seemed to make him tense. It wasn’t like he was being subtle with his discomfort. You could tell quite easily from the way he gripped the steering wheel, his knuckles whitening from the force.

“We’ll keep him minimally alive as we gather the supplies, then,” you said, “I want him to find his limit with the syrup—or honey—so that he could live off of that for a while, rendering him into a state of permanent nausea. And then finally, when I’ve had enough of his suffering, when he’s bloated up on sugar… I’ll drown him it. Waterboard him with the stuff. Honeyboard?”

Kenjaku could only bite his tongue, nodding as he listened. That familiar stir of arousal built up in his core again the more he listened to you talk. The way you thought of everything that had to be done filled him up with lustful pride. He wanted to get close to you again, to fuck you once more, but god, he was so thoroughly spent.

Another time then.

Something about you was driving him continuously mad to the point where he was unsure what on earth it truly was; it went beyond infatuation and love and felt almost painful to describe, but whatever it was—he couldn’t get enough—he always needed more.

For now, however, he forced himself to rein in his thoughts. Both of you needed to rest, and soon so that you could devise a plan that was cohesive and doable. Sugar and water was the more likely route, he thought, honey—especially in this economy—was far from cheap, even if sold in bulk. Maybe it could still be pulled off, though, especially if he was already having Mahito take the fall.

But first, before he got around to any of that, his mind drifted off to a pettier thought.

He wanted to not only fuck you again, but to make Naoya watch this time.

Shit. He could hardly wait.