Disclaimer: Just in case nobody realized I don't own nor do I claim ownership of Highschool DxD, all characters and worlds belong to their real world respective owners. I'm just having some fun, that's all.
Warning sexual content disclaimer: All characters and actions are above 18+
Highschool DxD: The Cursed King of Kuoh
S1 Ch 16: A Devil's Dirty Trick
The little devil group didn't use a teleportation circle. That alone told Sukuna how seriously Rias was taking her challenge.
Instead, they moved deeper into the grounds of Kuoh Academy, beyond the main buildings and manicured walkways, past the athletic fields and storage facilities rarely used after hours. The sun dipped low as they walked, the sky bruising into shades of amber and violet, cicadas beginning their nightly chorus.
The chosen ground was an old training field that was wide, flat, and ringed by tall trees whose branches were interlocked overhead like grasping fingers. It was isolated by design. No classrooms nearby. No dorms. No human eyes. Which made it the perfect playground for their little game.
Sukuna walked at the front, hands in his pockets, posture loose and unbothered. He looked more like a student heading home than a combatant about to face a group of devils. Behind him, Rias spoke quietly, issuing instructions. Akeno and Koneko moved to opposite ends of the clearing. Kiba followed close to Rias, his expression was composed but focused, one hand resting unconsciously near where his sword would soon be summoned.
The air shifted. Invisible lines of power spread outward as the devils went to work. A barrier rose. Sukuna could feel it immediately. A layered construct woven of demonic energy and refined magic, designed not only to conceal but to contain. The sounds of the outside world dulled, cicadas faded into silence. Even the breeze seemed to still, trapped within the sealed space. A second layer followed. A containment veil. Energy suppression. Structural reinforcement. Damage mitigation.
"Impressive," he muttered, glancing around using his mystic eyes to read the magic signatures. "You've done this before huh."
Rias ignored the comment, stepping into the center of the clearing. With a flick of her wrist, a magic ring flared into existence. An intricate sigil etched into the ground, glowing faintly crimson and gold.
"This ring will regulate damage," she explained, her voice formal now. "It will heal injuries automatically as long as they remain non-lethal. Pain will be reduced but not eliminated."
"Well that's a shame," he smiled maliciously, making Akeno smile sweetly and cover her mouth with her hand.
Rias continued. "The match continues until one party is incapacitated, or admits defeat." She met Sukuna's gaze. "Do you accept these terms?"
He didn't hesitate. "Of course," he said, already stepping into the ring.
The ground beneath his feet felt solid—reinforced, layered with magic to withstand far more force than any normal terrain. Sukuna bounced once on the balls of his feet, testing it.
"Feels sturdy enough," he said. "Let's not waste time."
Rias inhaled slowly. "Kiba," she said. "You're first."
Kiba nodded once. He stepped forward, calm and composed, his expression disciplined despite the weight of what lay ahead. With a smooth motion, he extended his hand—and light gathered. A sword formed. Steel-white and elegant, its blade gleaming with holy-forged purity, runes faintly etched along its length. It hummed softly as it settled into his grip, resonating with his magic.
Kiba stepped into the ring opposite Sukuna. The barrier sealed behind him.
Sukuna looked at the sword. Then at Kiba. Then he smiled. "Ah," he said, voice dripping with amusement. "So the dog's first, huh?"
Kiba's brow twitched—but only slightly. "I'm a knight," he replied evenly. "And I'll fight you as one."
Sukuna tilted his head, examining him like a curiosity. "Calm. Disciplined. Loyal," he mused. "You've got the look." He rolled his neck once, cracking it casually. "Go on, then show me what you've got mutt."
Rias raised her hand. "Begin."
Kiba moved first. In a blink, he surged forward, feet digging into the reinforced ground, sword arcing toward Sukuna's head in a clean, precise strike. No wasted motion. No hesitation.
Sukuna tilted his head. That was it. The blade passed by his cheek—close enough that the air displaced by its edge brushed his skin, missing him by mere inches.
Sukuna's grin widened.
Kiba didn't stop. He flowed seamlessly into the next strike, then the next, blade singing as it cut through the air. His footwork was immaculate—balanced, efficient, every step calculated to control distance and pressure.
Sukuna retreated. Slowly. Almost lazily. He backpedaled just enough to let each strike pass, dodging on hairbreadth margins. A shift of the shoulders. A lean of the torso. A pivot of the hips. Each movement was minimal, economical. Mockingly effortless.
"You're good," Sukuna said casually, sidestepping another slash aimed at his ribs. "At least in terms of perfect technique."
Kiba pressed harder, teeth clenched, sword flashing in controlled arcs aimed at vital points. Head. Throat. Torso. Legs. Sukuna continued to evade, hands still in his pockets.
"But predictable," Sukuna added. "Every move chosen by the book. No wasted effort."
Kiba's eyes narrowed. Frustration started to creep in—not wild, not reckless, but there. The awareness that no matter how close he got, he couldn't quite land a hit. The audience felt it too. Koneko watched silently, eyes sharp. Akeno's smile thinned, interest sharpening. Rias's fingers tightened slightly in her grip.
Kiba exhaled. Then his magic surged. The Knight Piece activated. Power flooded his limbs, compressing into his muscles, sharpening his perception, accelerating his movements beyond human limits. The ground cracked beneath his feet as he launched forward again—this time, he vanished. To the untrained eye, he became a blur of motion, sword striking from impossible angles, pressure increasing exponentially.
Sukuna's eyes widened. "Oh?"
Steel kissed flesh. A sharp sting traced along Sukuna's cheek as the blade finally found purchase, drawing a thin line of blood. The ring flared, already beginning to heal the wound—but not before Sukuna reached up, touching his cheek with two fingers. He looked at the blood. Then he smiled. His eyes shifted. Blue bled into crimson.
"That's more like it." Cursed energy surged. Not explosively—refined. It wrapped around Sukuna's body like a second skin, reinforcing muscle, bone, and reflex with terrifying efficiency. The air around him warped subtly, pressure rolling outward.
When Kiba struck again—Sukuna moved. This time, he didn't retreat. He stepped in. The sword came down and as it did caught it. Barehanded. His fingers clamped around Kiba's wrist mid-swing, cursed energy flaring as steel screamed in protest. The force halted Kiba dead in his tracks, momentum snuffed out instantly.
Kiba's eyes widened.
Sukuna pulled him forward. A right hook slammed into Kiba's ribs, the impact echoing through the ring. The Knight Piece dulled the damage—but not enough to stop the breath from being ripped from his lungs. Sukuna leaned in close, eyes burning.
"You fight like a true knight," he said quietly. "Chivalrous. Honorable."
Kiba tried to pull free, but Sukuna wouldn't let him.
"Do you want to know what the problem with honor is?" Before Kiba could respond—Sukuna slammed his forehead forward.
The headbutt landed square on Kiba's nose. Bone cracked. Blood sprayed. The world rang as Kiba staggered back, ears ringing, vision blurring.
He barely registered Sukuna moving again before—the sword swung reflexively. Sukuna caught the blade in his palm. Metal shrieked. With a sharp twist, Sukuna wrenched the sword aside and drove a sidekick into Kiba's chest. The impact sent Kiba flying. He slammed into the barrier with a thunderous crash, the magical wall rippling violently as his body crumpled and slid down, landing hard against the ground. The ring flared, magic racing to heal broken bones and torn muscle.
Kiba didn't move. His sword dissolved into light. Silence fell. The barrier hummed softly as it stabilized. Kiba lay on the ground, chest rising and falling shallowly, consciousness flickering but intact. He tried to move, but couldn't.
Rias stepped forward slightly, eyes fixed on him. "Kiba is incapacitated, winner Sukuna" she said quietly.
Sukuna rolled his neck once, then turned his gaze toward the others. Akeno stared, her smile gone. Koneko's eyes were wide. Rias's expression was tight—but resolute. Sukuna's grin returned, slow and arrogant.
"Well?" he asked. "Who's next?"
The barrier hadn't even finished settling when Sukuna turned back toward the ring's edge. His posture was loose, shoulders relaxed, hands rolling once at his sides as though shaking off stiffness rather than finishing a fight. There was no trace of exertion on his face—only mild curiosity, the kind one might wear after confirming an assumption.
Rias exhaled slowly. "Koneko," she said.
The white-haired girl stepped forward without hesitation. She didn't look at Sukuna as she entered the ring. Her eyes remained lowered, expression neutral, small hands clenched into fists at her sides. If she felt anger or fear, she didn't show it.
Sukuna watched her approach, head tilting slightly.
"This one's different," he thought.
Internally, he dismissed the notion of escalation. No cursed techniques. No innate manifestations. He didn't even bother to reinforce himself beyond a baseline hum of cursed energy.
"I don't need more than this." he thought as the barrier sealed behind Koneko.
Rias raised her hand. "Begin."
Koneko moved immediately. No testing. No circling. She stepped in—and the ground exploded. Her foot drove off the reinforced earth, propelling her upward in a blur of motion.
Sukuna barely had time to register the sudden spike in mass and force before she descended, leg arcing overhead. He jumped back. The kick slammed down where he'd been standing an instant earlier. The earth cracked. A shallow crater bloomed outward, spiderweb fractures racing across the ring's surface as dust and debris shot up into the air. Sukuna landed lightly a few meters back, eyes widening just a touch.
"Oh?" he said.
Koneko didn't pause. She straightened, feet settling into a solid stance, shoulders squared. Her demonic aura pressed outward—dense, heavy, compressed like a mountain held together by will alone. Rook.
Sukuna grinned. He lifted one hand and curled his fingers toward himself.
"Come on," he said. "Bring it."
Koneko advanced, but didn't rush, and certainly didn't hesitate. Her movements were compact, efficient, every step grounded with crushing weight. When she struck, it was with brutal simplicity—straight punches, sharp kicks, no wasted flourish.
Sukuna met her head-on. Fists collided. The impact reverberated through the ring, a dull, thunderous sound as his forearm absorbed the blow. He slid back half a step, boots scraping the ground.
"Strong." He ducked under a follow-up punch, pivoting smoothly as a kick whistled past his ribs. He blocked another strike, cursed energy humming faintly as he deflected the force.
Koneko adjusted. Sukuna saw it the moment her weight shifted. She stepped in close, fist rising toward his face. He raised his guard, but it was too little too late. Her punch dipped, striking the ground instead. The impact sent a shockwave rippling upward, destabilizing his footing just enough for her to spin. Her leg came around in a tight arc. The spinning hook kick connected with his face. Hard.
Sukuna staggered back several steps, boots digging furrows into the earth. His head snapped to the side as pain flared, sharp and electric. He spat to the side, Blood hitting the ground. Sukuna straightened slowly, wiping his mouth with the back of his hand, and laughed.
"Not bad," he said, voice bright with genuine glee.
Sukuna stepped forward. This time, he attacked. His fists came fast—sharp, precise, probing. Not wild. Not brutal. Each strike tested Koneko's guard, her balance, and her ability to absorb impact. She blocked, and endured. Blows slammed into her arms, shoulders, ribs. Her feet dug trenches into the ground as she was forced back inch by inch. Her durability was monstrous, but even mountains eroded under steady pressure.
Sukuna caught her punch mid-swing. His fingers closed around her fist like a vice. He leaned in, nostrils flaring slightly.
"…Interesting," he murmured. "I can smell it."
Koneko's eyes widened.
"Youkai, Nekomata to be exact," Sukuna said quietly. "Why aren't you using your real power?"
The question hit harder than any blow. Her focus fractured for only a moment. That was enough. Sukuna's right cross landed cleanly. Her head snapped back, white hair flaring as she staggered. Before she could recover, he was on her—unleashing a relentless barrage. Punches. Elbows. Kicks. Each impact thudded into her body, cursed energy reinforcing his strikes as he pushed her defenses to their limit.
Her uniform tore at the seams, fabric shredding under the accumulated force. She fought back, but now much slower. He drove a knee into her abdomen, followed by a hook that sent her reeling. Then—a front kick. It slammed into her chest with explosive force.
Koneko flew. She hit the barrier hard, the magical wall rippling violently as her body bounced and collapsed onto the ground. The ring flared, healing magic rushing to knit bruised flesh and fractured bone. She didn't get up. Silence settled again. Koneko lay still, chest rising and falling shallowly, consciousness flickering. She tried to push herself only to slide back down.
Rias stepped forward, voice tight laced with a hint of concern. "Koneko is incapacitated."
Sukuna exhaled slowly, rolling his shoulders. "Two down."
He turned toward the remaining devils. Akeno stared at him, amusement gone, eyes alight with something sharper. Rias's expression was controlled, but now held clear concern. Akeno's demonic power surged. Lightning crackled through the air as she transformed, shrine maiden garments replacing her uniform in a flash of light. Her smile returned—dangerous now.
"I suppose that makes me next," she said with fake cheerfulness.
Sukuna raised his hand. "Hold on."
Making Akeno pause, as he let out a disappointed sigh.
"This is getting dull," he said. "You're taking too long." His gaze swept over Rias and Akeno alike, arrogance radiating from him in waves. "Come at me together," Sukuna said. "All of you. Next round."
The barrier hummed as the two devils stepped inside. Standing across from the boy whose power she craved, Rias's heart pounded. This wasn't how it was supposed to go, but there was no point in worrying over spilled milk. Akeno and Rias exchanged a look. A flicker of surprise, then determination. Rias nodded, a silent command. Both women shot into the darkening sky, their forms blurring as they gained altitude, leaving Sukuna alone in the center of the ring.
"Wise," Sukuna called out, his voice carrying easily. "Running away is always smart when you're facing me."
Akeno's laughter drifted down, laced with an edge of something predatory. "Oh, we're not running, Sukuna. We're just getting a better view."
Lightning began to coil around Akeno's outstretched hands, crackling with raw, untamed power. Above her, Rias began to gather her own energy, a crimson sphere of destructive force blooming in her palms.
"That's the Power of Destruction I've heard about, isn't it?" Sukuna mused, his eyes tracking the growing orb analyzing the magic signature and its properties. "Entropy itself turned into a weapon. Where did you learn such magic, little devil?"
Rias's voice, though distant, held a clear note of pride. "It is the inherent power of the House of Bael. Passed down for centuries through our bloodline."
"Bloodline," Sukuna scoffed, but a flicker of genuine interest crossed his face. He watched the sphere expand, the air around it shimmering with pure, annihilating force. "Fascinating."
Akeno, meanwhile, was ready. A blinding spear of lightning shot from her hand, arcing through the air with a savage hiss. It struck Sukuna dead center, engulfing him in a brilliant flash. The crackle of electricity filled the clearing, and even through the barrier, the air vibrated with the raw energy.
Rias watched, a slight frown on her face. "Akeno, don't hold back."
Akeno's smile was wide, her eyes sparkling with malicious glee. "But Rias, he's enjoying it!"
Her assessment was correct, as the lightning dissipated, Sukuna stood unbowed, his hair slightly singed, a faint scent of ozone clinging to him. A low chuckle rumbled in his chest, growing into a full-throated laugh.
"Excellent! A truly exquisite sensation! You deliver pain with such… enthusiasm. I commend you, woman." His eyes, still blazing crimson, met Akeno's. "You have a talent for it."
Akeno shivered, a thrill running through her. "Why thank you, Sukuna, I try."
Sukuna frowned then, a genuine annoyance creasing his brow. He looked up at them, then down at his feet, as if considering something deeply.
"This is becoming tiresome. I find myself at a disadvantage." He sighed dramatically gesturing to the two flying devils. "It seems you two are marginally more capable than your… less impressive companions. You've forced my hand."
Before either Rias or Akeno could react, Sukuna lifted a hand. A silent, invisible force shimmered in the air, then shot upwards. Akeno, mid-charge of another lightning spell, felt a sudden, searing tear across her chest.
Her shrine maiden top shredded, a portion of the delicate fabric dissolving into motes of light, leaving her right breast completely exposed. It was a ripe, full globe, a dusky pink nipple already hardening in the cool evening air.
Akeno gasped, her eyes widening in shock, then in a flash of anger. The lighting crackled more violently in her hand.
Sukuna, however, froze. His eyes, which had been fixed on her chest, glazed over. The sheer, unadulterated voluptuousness of it, bouncing slightly with her sudden movement, stole his focus. The pink nipple, a beacon of raw, feminine allure, held him captive.
The moment stretched. Akeno, seeing his distraction, saw her chance. Her lightning spell, already charged, surged forward with a furious roar, a bolt thicker and more potent than before. It slammed into Sukuna, catching him completely off guard.
He flew backward, a surprised grunt escaping his lips, a human sound of pain rather than his usual detached amusement. He slammed into the barrier with a sickening thud, the magical wall rippling like disturbed water. Rias stared, her mouth slightly agape. Akeno, though still fuming from her exposed breast, smirked. She descended slightly, hovering closer to Rias.
"He has a weakness," Akeno whispered, her eyes gleaming. "A very obvious one."
Rias nodded, understanding dawning in her eyes. She looked at Sukuna, who was slowly, painfully, pushing himself back to his feet, dusting off his uniform with a grimace.
"We'll end this with the next blow," Rias declared, her voice ringing out across the clearing.
She began to gather her power again, the crimson sphere of annihilation in her hands growing larger, denser, crackling with unrestrained energy. This was her ultimate attack. Sukuna chuckled, though a tremor of irritation ran through it. He straightened, his eyes fixed on the expanding orb.
"Such a slow, theatrical display. You should know, little devil, that on a true battlefield, taking that long to form an attack means death."
He lifted his hand, crimson energy coalescing into sharp, invisible blades. He intended to finish this, a simple dismantle to incapacitate her.
"Hey Sukuna!" Akeno's voice cut through the air, sharp and deliberately seductive.
He glanced at her, his hand already moving. But then Akeno pulled the front of her shredded shrine maiden gown completely open. Both of her watermelon-sized breasts sprang free, jiggling and bouncing enticingly with the movement. Their pink nipples, now fully erect, seemed to beckon him.
Sukuna's eyes locked onto them. His hand, poised to unleash his attack, wavered. He hesitated. A breath. A heartbeat. A moment too long.
Rias's eyes narrowed. "Extinguished Star!" she roared.
The giant ball of destruction, now a swirling vortex of crimson annihilation, shot forward, engulfing Sukuna completely. The world seemed to fold as the sphere engulfed Sukuna entirely, its surface cracking and pulsing as it compressed everything within its radius.
There was no explosion—just annihilation, followed by a sudden, violent absence as the power burned itself out.
When the light faded, smoke rolled across the shattered ground in heavy waves. No one moved. Rias stood rigid, arm still outstretched, her heart hammered in her chest. The energy drain hit her all at once, knees trembling as the reality of what she had unleashed settled in.
"…Sukuna?" Her voice emerged tight, a strained whisper against the ringing silence.
The smoke thinned. At the center of a crater laid a silhouette that could barely be seen through all the smoke. It was a body or more accurately what was left of one.
Sukuna lay motionless amid scorched stone, his form badly damaged by the attack. Parts of his body were missing, his clothing reduced to torn remnants, his skin darkened and burned where the spell had struck him directly. He did not stir. For a moment nobody moved.
Kiba took an unsteady step forward. His foot crunched on debris. "…That was a direct hit."
Koneko's eyes narrowed, a tiny tremor in her usually stoic jaw. "…He didn't evade."
Akeno's expression had gone still, her usual composure fractured by uncertainty. Her gaze fixed on the broken figure, a flicker of something unreadable in her dark eyes. Rias's stomach twisted. A cold knot formed, tighter than any fear she'd known in battle.
She wanted to win, that didn't mean she wanted to kill him.
"Prepare healing magic at once!" She barked at Akeno and Koneko.
But before anyone could move the air suddenly shifted. A faint distortion rippled around Sukuna's body, subtle at first, like a heat haze rising from stone. Then the sensation intensified, pressure building as something unseen began to push back against the damage.
His body began to move, energy surged inward rather than outward, flowing through him with unnatural precision. What had been destroyed began to restore itself—not violently, not grotesquely, but efficiently, as though an invisible mechanism had activated.
Limbs reformed, skin smoothed, and burns faded as if time itself were reversing course. Within seconds, Sukuna's body was whole again.
He drew in a sharp breath and sat up abruptly, eyes snapping open as awareness returned all at once. He looked down at himself, flexed his fingers, then burst to his feet, a sudden, powerful motion that kicked up dust.
Everyone fell silent with shock.
"…Regeneration," Kiba muttered, his voice barely audible. "That fast…?"
Akeno exhaled slowly, a soft sound of wonder. "That rivals the Phoenix Clan."
Rias felt the tension leave her chest in a rush, relief nearly overwhelming her. He was alive. More than alive—restored completely. Sukuna rolled his shoulders, then scowled. His eyes, now fully open, held a dangerous glint.
"That," he said loudly, his voice echoing across the broken field, a low growl of annoyance, "was cheap."
Everyone blinked.
"You cheated." He pointed an accusing finger, not at Rias, but at Akeno, his face flushed with indignation. "And you! With the… the jiggling! That's not a battle tactic, that's just… unfair!"
Akeno tilted her head, a slow, knowing smile spreading across her face, her eyes sparkling with amusement. "Ara~? Did my humble assets distract the great Sukuna-sama? Were my girls too much for your focus, darling?" Her chest, already prominent, seemed to swell with playful pride, jiggling slightly with her soft laughter. "Heeheehee~"
Sukuna spluttered, his cheeks darkening further.
"Of course they did! It's an underhanded trick! A cheap shot!" His voice rose, tinged with a flustered, almost childish anger. "You can't just… just do that in the middle of a fight!"
Rias, finally steady again, crossed her arms, a playful smirk tugging at her lips.
"Perhaps you should learn to keep your eyes on the fight, Sukuna." She chuckled softly, her voice carrying a teasing lilt. "Or maybe you just have a weakness for beautiful women, hmm? A common enough flaw."
Sukuna glared, his jaw tight, then looked away with an irritated click of his tongue, a clear sign of his displeasure and embarrassment. "I didn't expect devils to be so shameless."
Akeno's laughter grew warmer, a purr that seemed to wrap around him. "You wound me, Sukuna."
Silence stretched, thick with the lingering tension of the battle and Sukuna's unexpected indignation.
Finally, Sukuna exhaled sharply, a frustrated puff of air. "…Fine."
Rias raised an eyebrow, a hint of triumph in her expression. "You concede?"
"Temporarily," he said flatly, his gaze snapping back to her, sharp and unyielding. "Don't misunderstand."
She smiled, confident now, the warmth of victory settling over her. "Then by the terms of our duel, you'll serve under me."
His eyes narrowed, a dangerous spark igniting within them. "This isn't finished. I'll demand a rematch."
Rias's smile turned playful, a hint of challenge in her eyes. "I'll be waiting."
Akeno leaned in slightly, her voice a soft purr. "We do hope you'll enjoy your stay. We have many… distractions here." Her gaze flicked pointedly to her chest, then back to Sukuna's still-flushed face.
Sukuna scoffed—but there was something sharp and hungry in his grin, a wild glint that promised future trouble. The battle was over, but the consequences had only just begun.
A/N: If you like this story and what to read ahead chapters 17, 18, 19, 20, 21, 22, 23, 24 and 25 are already available for Patrons.
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