NTR: Choice Based System

"Motherfucker!"

Ye Yang yelled, pushing himself up, his legs unsteady beneath him. Blood trickled from his nose and the corner of his mouth, a testament to the internal strain of his last attack.

"Didn't I tell you you'll regret this? Now get ready to die!"

Ignoring the agony in his chest and the warning bells screaming in his mind, Ye Yang channelled the spatial Qi once more.

The air around him warped, a visible distortion shimmering into existence. With a hoarse cry, he swung his sword, not with practiced form, but with the desperate, raw power of his will, sending another wave of spatial energy tearing towards Training Head.

The effort was immense, a crushing weight on his already depleted body. He coughed violently, a spray of blood staining the ground, his vision tunnelling as he felt his knees buckle.

Just as he began to fall, a strong arm wrapped around his waist, steadying him. Hell, silent and impossibly fast, had vanished from where he stood with Dan Ya and reappeared beside the collapsing Ye Yang.

Dan Ya was no longer in his arms; she was gently placed on a relatively clear patch of ground nearby, seemingly unaffected by the chaos.

"Don't use that power," Hell's voice was firm, devoid of its usual playful lilt. "It is damaging you from the inside. One more time, and you'll die."

Ye Yang, struggling to remain on his knees, pushed against Hell's supporting arm. "No... I have to fight," he gasped, his voice weak. "That guy is going to get what he deserves."

His eyes, burning with an almost feverish intensity, remained fixed on Training Head.

Hell shook his head slightly. "Look there," he said, tilting his head towards Training Head. "He is already weakened."

Ye Yang followed Hell's gaze, his eyes widening slightly. Training Head, caught off guard by the sudden, albeit unstable, spatial attack, had failed to fully parry it.

Despite his significantly higher cultivation level, the unexpected nature of the attack and the lingering effects of Hell's initial disorientation had left him vulnerable.

A large, ragged wound was clearly visible on his chest, blood welling up and staining his already torn robes. He staggered back, clutching the wound, his eyes wide with disbelief and pain.

He had survived, but he was far from the dominant figure he had been moments before. The battle wasn't over, but the scales had just tilted.

Training Head crumpled to the ground; his hands still clasped over the grievous wound in his chest.

The heavy pain was a constant, throbbing agony, but the deeper wound was to his pride, his worldview. "No... this can't be..." he choked out, spitting a mouthful of blood onto the churned earth.

He couldn't grasp it, the impossible reality that he, a man who had climbed the ranks through sheer force and ruthlessness, had been brought down, however temporarily, by the boy he had scorned as a 'waste'.

"How?"

He gasped, his voice strained, eyes fixed on Ye Yang with a desperate, furious confusion.

"How do you possess such power? A weakling... like you aren't worthy of it!" He continued to rail, even as his strength ebbed, "A weakling like you..."

His words trailed off, his eyes glazing over. Ye Yang, watching with bated breath, thought it was over.

The bastard was finally dead. A wave of grim satisfaction washed over him, quickly followed by the crushing weight of his own exhaustion.

But Hell's reaction was immediate, sharp, and utterly unexpected.

His playful demeanour vanished completely, replaced by a look of intense focus, his eyes widening slightly, a flicker of something akin to dread crossing his features.

He sensed something, a shift in the energy of the ruined training ground, something ancient and deeply unsettling that he hadn't anticipated, not in this world, not from this person.

"Stay away from him..." Hell's voice was low, a rumbling growl that vibrated with urgency.

Without a word, he swiftly moved, pulling Dan Ya back into his arms.

With fluid grace, he wrapped her in a discarded piece of cloth and then, a faint, almost invisible energy shimmered around her, a protective shield against whatever was coming.

Still holding Dan Ya securely, Hell reached out a hand towards Ye Yang. A warm, golden energy flowed from his palm into Ye Yang's body.

The searing pain in Ye Yang's chest lessened marginally, and he felt a slow, painstaking recovery begin, mending the internal damage wrought by the spatial Qi.

"Stay away..." Hell repeated, his gaze now fixed on Training Head's lifeless body, his eyes narrowed intensely.

The expression on his face was one Ye Yang had never seen before – a mixture of disbelief and something dangerously close to apprehension.

He was clearly hoping his initial sensing was a false alarm, a misinterpretation of the chaotic energy swirling around them.

Ye Yang, utterly bewildered by Hell's sudden change in demeanour and actions, asked in worried tone. "What happened? Why are you...?" His question died on his lips as he, too, noticed the change in Training Head.

Training Head's body began to shimmer, not with the chaotic energy of Ye Yang's spatial distortion, but with a deep, unsettling violet light.

The light intensified, coating his form like a grotesque cocoon. Slowly, impossibly, his body began to lift from the ground, levitating a few feet into the air.

The air around him grew heavy, thick with a dreadful power, a suffocating aura of ancient malevolence that sent shivers down Ye Yang's spine. It felt wrong, fundamentally unnatural.

Hell's eyes widened further, the last vestiges of doubt vanishing, replaced by grim certainty.

A single phrase, heavy with the weight of realization and shock, fell from his lips, barely a whisper in the suddenly oppressive silence.

"It... it can't be..."

With a subtle wave of his hand, a surge of his aura enveloped the unconscious Dan Ya, lifting her gently and propelling her swiftly away from the immediate vicinity, towards a safer distance beyond the ruined training grounds.

Then, his attention snapped back to Ye Yang, his gaze intense and unwavering.

"You'll die if you stay here," Hell said, his voice taut with urgency, a stark contrast to his usual easy tone.

"Go fast..." His voice trailed off, not because he finished speaking, but because the transformation of Training Head was accelerating, becoming a grotesque spectacle that demanded his full attention.

The horrifying violet light pulsed around Training Head's levitating form.

The ragged wound in his chest, moments ago a gaping maw of torn flesh and bone, began to knit itself together with impossible speed, the skin crawling back into place as if it had never been injured.

From his temples, two thick, dark horns sprouted, curving upwards and outwards like those of a powerful bison, their tips sharp and menacing. His body swelled, muscles bulging and twisting beneath his tattered robes, which tripped and fell away as he rapidly grew in size.

The dreadful power coating him like a cocoon intensified, coalescing into a tangible aura of pure malice that seemed to suffocate the very air.

Ye Yang watched, frozen in a mixture of terror and disbelief. His exhaustion was momentarily forgotten, replaced by a cold dread that seeped into his bones.

This wasn't just a transformation; it was a monstrous metamorphosis into something alien and terrifying.

The man he had fought, the human he had wounded, was gone, replaced by a towering, horned entity radiating an overwhelming, oppressive energy.

"What is this...?" Ye Yang whispered, the question barely escaping his lips.

The energy emanating from the being that was once Training Head was unlike anything he had ever encountered – cold, vast, and utterly malevolent. It felt like the presence of a true predator.

Hell's eyes, still fixed on the now fully transformed figure hovering in the air, were grave. He finally spoke, his voice low but clear, cutting through the dreadful silence.

"That," Hell stated, a chilling certainty in his tone, "is a demon from another world."