High School DxD: The Lucifer's Devil Trigger — Chapter 61

Chapter 61: Sin Devil Trigger

Twin blades of azure energy erupted from his forearms, the razor-sharp edges humming with raw, volatile power. A pair of massive, demonic wings tore free from his back, unfurling to cast a terrifying shadow across the void.

Sin Devil Trigger.

Luminous blue incantations crawled over his scales, weaving a complex spell formation he had designed ages ago. The moment the transformation finalized, the circuit activated. An umbilical cord of pure magic tethered him directly to the Source. For the next twenty-four hours, his mana reserves were infinite, replenished faster than he could ever expend them.

But there was a steep price. By tomorrow, the formation would sever the link, forcing him out of the form.

For now, however, the overwhelming influx of power had completely drowned out his sanity.

His glowing eyes locked onto the colossal form of Great Red. A sonic boom shattered the silence of the dimensional gap as he vanished, transforming into a blinding streak of blue light. Compared to the apocalyptic size of the True Dragon, Levi was nothing more than a speck of dust. Yet, when his fist collided with the dragon’s snout, the kinetic shockwave rippled through the void. The sheer force sent Great Red hurtling backward.

Levi did not pause. He slammed his fists together, locking the arm blades into a deadly forward guard, and flared his wings to their absolute limit. He became a living projectile, trailing violent aftershocks as he tore through the emptiness in relentless pursuit.

Ophis observed the spectacle from a safe distance. She had retreated the moment the blue aura erupted, her delicate face remaining a mask of absolute apathy. But as she watched the demonic dragon tear into the dimensional behemoth, a subtle shift occurred in her hollow, obsidian eyes.

A faint glimmer of validation.

It was exactly as she had hoped. He was the only existence capable of helping her reclaim her eternal silence. Her tiny hands clenched into fists. She would let him rage for today. When the twenty-four hours expired, she would step forward and protect him.

Far away in the hidden world of Gensokyo, the residents of Mayohiga were gathered in a tense vigil. Yakumo Ran stood off to the side, dark circles framing her eyes after two sleepless days of managing the Slime incident. Her preparations were nearly complete, but her attention was currently stolen by the tear in space hovering in the courtyard. Yakumo Yukari had opened a massive gap, allowing the assembled crowd to witness the apocalyptic clash of red and blue raging outside the world.

To think he is actually on par with a Dragon God, Yukari murmured, her usual playful demeanor entirely absent. A genuine Third Dragon God.

Her eyes widened as she watched the Sin Devil Trigger in action. Beside her, Ibuki Suika stood frozen, the gourd of sake dangling forgotten from her fingertips. It took the oni several long minutes to process the sheer scale of the violence.

Yukari mentioned he was strong, Suika muttered, her voice lacking its usual boisterous volume. But I didn’t expect Lord Levi to be this monstrous.

She had already subconsciously attached the respectful honorific to his name.

Kazami Yuuka remained absolutely silent. Her crimson eyes tracked every shockwave, every burst of blue flame. She understood the stakes perfectly. This battle would dictate the survival of Gensokyo. If the red behemoth truly was Great Red, and Levi failed to stop it, their sanctuary would be erased. Reimu Hakurei stood nearby, her grip tight on her purification rod, harboring the exact same grim realization.

Grayfia Lucifuge stepped forward, her silver hair catching the ambient light. Her voice was calm, a steady anchor amidst their rising panic.

Lord Levi has indeed reached the Dragon God Class in that state, she stated, her tone measured. But do not let your expectations blind you to the reality of the situation.

Yuuka and Reimu snapped their attention toward the silver-haired maid.

Lord Levi made his intentions clear before departing, Grayfia continued. This is not a battle to the death. It is a calculated test of strength. If victory proves impossible, Ophis will extract him. They will retreat, analyze the combat data, and prepare for the next encounter.

She swept her gaze over the anxious crowd.

Remain calm and observe. That is Great Red. The True Dragon is not an entity one simply defeats on a whim.

Gensokyo was not the only audience. Across the various realms, the leaders of every major pantheon had mobilized their greatest scrying magics, their eyes glued to the dimensional gap. The mysterious Third Dragon God had vanished too quickly last time. Now, he was clashing head-on with the Apocalypse Dragon itself. No one dared to miss such a monumental event.

When the blinding blue light coalesced into the shape of a demonic dragon, gasps echoed through the halls of power. It truly was a dragon.

Deep within the Underworld, Hades let out a cold, raspy chuckle. The King of the Dead leaned back on his throne, entirely unbothered by the revelation. Since the entity was classified as a dragon, it posed no threat to him. He held the ultimate countermeasure in his grasp—the Dragon Eater, Samael.

Elsewhere, the Devils, Angels, and Fallen Angels watched with bated breath. Rizevim Livan Lucifer stood before a scrying circle, his manic grin widening with every passing second.

I knew it! It really is that power! he crowed, his voice dripping with twisted glee.

He had sensed a faint trace of it before, but seeing it unleashed confirmed his suspicions. It was the unmistakable aura of his father, the Original Lucifer. Yet, this power had been mutated, elevated to the world of a Dragon God.

Rizevim threw his head back and laughed, the sound echoing off the stone walls. But as the laughter died down, a venomous shadow fell over his features.

Old man… if that really is you crawling back from the abyss, do not expect any mercy. You are dead. You should have stayed rotting in the ground!

In the heart of the Underworld, the current Satan faction was experiencing a completely different kind of shock.

Ajuka… Sirzechs Lucifer leaned closer to the magical projection, his brow furrowed in deep concentration. I believe I just saw that Third Dragon God use the Power of Destruction.

Before he could even finish the sentence, a massive, emerald-green magic circle flared to life behind Levi’s demonic form. The complex crest of the Asmodeus Clan blazed with blinding intensity, visible to every faction monitoring the fight.

Your eyes are functioning perfectly, Sirzechs, Ajuka Beelzebub replied, his voice tight with bewilderment.

They watched in stunned silence as the blue dragon effortlessly cycled through the hereditary magics of the Underworld. The water manipulation of the Sitri, the immortal flames of the Phenex, the spatial distortions of the Buer Clan—the signature abilities of the 72 Pillars flowed from his claws with terrifying ease. They lacked Rizevim’s unique connection to the Original Lucifer, but they could never mistake the foundational magics of their own society. The two Satans exchanged a grim look, their initial curiosity replaced by a heavy, suffocating dread.

In Grigori, the Governor General of the Fallen Angels stared at the projection, his fingers drumming a nervous rhythm against his armrest. Azazel watched the Third Dragon God wield demonic power against Great Red, his mind racing with the catastrophic political implications. Would this monster trigger another Great War? Yet, beneath his anxiety, a nagging sensation tugged at his instincts. The demonic energy radiating from the blue dragon felt strangely, uncomfortably familiar.

High above in the pristine halls of Heaven, the atmosphere was a stark contrast to the gloom of the Underworld. Michael stood before the viewing crystal, a serene, almost euphoric smile gracing his features. If the system had not strictly forbidden their interference, he would have mobilized the angelic host to assist the blue dragon immediately.

Beside him, Gabriel, the most beautiful woman in Heaven, mirrored his radiant expression. The surrounding Seraphim shared their joy, their hearts swelling at the sight of the Third Dragon God—especially when he unleashed demonic power.

Michael kept his gaze fixed on the violent clash. This was the second occurrence. If the first instance had merely sparked suspicion, the blatant display of demonic energy eradicated all doubt. The final words of God echoed in his mind, clear as the day they were spoken.

‘I must make a choice. Light and darkness are not true enemies. After extreme light comes darkness, and extreme darkness is itself light. Wait, Michael. Do not mourn my passing. You must watch over that extreme darkness and wait for it to transform.’Michael remembered his desperate, tearful question.’Lord, will you return from that extreme darkness?’The Almighty’s answer had been absolute.’I will eventually disappear. And He will eventually arrive.’

Michael pressed a hand to his chest, his heart hammering. Could this entity truly be the one foretold?

Back in the dimensional void, Great Red was rapidly losing its temper. Ever since it had swatted at the blue pest, the demonic dragon had latched onto it with the rabid ferocity of a starving beast. Levi had previously concluded that Great Red was a mindless creature incapable of communication. Now, Great Red had reached the exact same conclusion about Levi. The blue devil was an absolute lunatic.

He was infinitely more troublesome than Ophis. When Great Red fought the Ouroboros Dragon, it could simply banish her from the dimensional gap and force her into the physical world. But this blue maniac refused to be displaced.

Levi’s fist blurred, aiming a devastating hook at the dragon’s jaw. Great Red swung a colossal claw to intercept it. The resulting collision sent a tremor through the True Dragon’s massive frame.

The punch was significantly heavier than the last. At the start of the brawl, Great Red had felt a distinct advantage in raw power. But the advantage was meaningless. Every attack it landed felt like swatting a fly. Even when its claws managed to tear through the blue scales, the eerie azure flames coating the devil’s body flared to life, knitting the flesh back together in an instant. Great Red attempted to use its absolute control over dreams to warp the madman’s mind and drive him away, only to find the ability completely negated.

It was forced into a brutal war of attrition. Suppressing the pest would have been manageable, but a terrifying reality was beginning to dawn on the Apocalypse Dragon.

The blue devil was getting stronger with every passing second.

The feral instincts driving the demonic form were rapidly adapting to the immense power of the Sin Devil Trigger. Bizarre, unpredictable magics erupted from his fists. The kinetic force behind his blows multiplied with every strike.

It could not drag this out any longer.

Great Red unhinged its massive jaw and unleashed a roar that defied the very laws of physics, shattering the absolute silence of the void. For the first time since the clash began, the True Dragon tapped into its true, unadulterated power. Its dominion over dreams erupted in a kaleidoscopic shockwave. It possessed the ability to fabricate entire universes in a fraction of a second, or mold perfect duplicates of itself.

Instead of attacking, it turned its power inward. It instantly fabricated a pocket dimension, a dream world layered directly over reality, and locked its true body inside. The space between them became an impenetrable barrier separating the physical plane from the world of dreams. Great Red rewrote its own existential definition, leaving behind a flawless, intangible projection in the real world while its true self hid safely away. It had absolutely no desire to continue brawling with this blue anomaly.

A fraction of a second later, Levi’s fist smashed into the dragon’s snout. There was a microscopic pause as the kinetic force registered, and then the demonic arm phased harmlessly through the projection.

Great Red let out a mental sigh of relief from within its sanctuary. It could finally catch its breath.

It prepared to retreat deeper into the dimensional gap, but a sudden shift in the blue devil’s behavior froze it in place. Until a moment ago, the madman had been attacking with the mindless aggression of a rabid dog. Great Red had assumed the beast would continue thrashing blindly at the intangible projection.

Instead, Levi stopped completely.

The demonic dragon hovered in the void, staring down at his own clawed hands. The violent aura surrounding him suddenly condensed. The pale blue flames, already radiating a terrifying heat, began to siphon directly into his fists. The sheer density of the gathered energy began to violently distort the very fabric of the dimensional gap, warping the space around him into a vortex of annihilating power.

A cold spike of primal terror pierced Great Red’s consciousness.

If that punch landed, even a True Dragon would not survive.