Then, his vision began to blur.
The bright, burning fires of the ruined market stalls and the dark silhouette of Catherine floating in the sky lost their sharp edges. The colors bled together into a muddy, indistinct gray. Yuno blinked rapidly, trying to clear his eyes, but the darkness crept in from the edges of his vision, closing like a heavy velvet curtain.
Within seconds, the world went completely, absolutely black.
Yuno gasped, taking another blind step backward. He opened his mouth to speak, to cast another spell, but he couldn't feel his own lips moving. He couldn't feel the rush of air passing through his throat.
The roaring sound of the burning city, the distant screams of the fleeing citizens, and the rushing howl of his own wind magic began to fade. The noise grew muffled, as if he had been plunged deep underwater. The ringing in his ears turned into a low hum, and then, slowly, the hum died away.
Total, crushing silence replaced the noise of the battlefield.
The smell of smoke and ozone vanished. The bitter taste of dirt and sweat on his tongue disappeared.
Catherine floated above him, watching the young, handsome knight stumble blindly in the center of the ash cloud. A cruel, triumphant smile stretched across her face, completely restoring her wicked confidence.
"That's right, little boy," Catherine purred, though she knew he couldn't hear a single word she was saying. "My cursed spell doesn't just drain your mana. It steals your connection to the physical world. It strips away your sight, your hearing, your smell, your taste, and your touch. You are completely alone in the dark. A helpless, blind mouse waiting for the cat."
Yuno was trapped in a void.
Panic, a sharp and unfamiliar emotion, flared in his chest. He reached out with his hands, grasping at the empty air, trying to find a physical anchor in a world that no longer existed to his senses. He couldn't tell if he was standing up straight or leaning backward. He couldn't tell if Catherine was right in front of him or a mile away. He was a prisoner inside his own mind, locked in a sensory deprivation chamber of ash and silence.
I can't see, Yuno thought, his heart hammering a frantic rhythm that he could no longer feel beating against his ribs. I can't hear anything. I can't even feel my own grimoire in my hand.
He tried to cast a wind blade, throwing his arm forward. He felt the mental exertion of expending mana, but without his physical senses to guide the spell, he had no idea if the attack manifested, where it went, or if it hit anything at all. It was like swinging a sword in a pitch-black room while utterly numb.
High above, Catherine laughed. She watched Yuno stumble, his arms flailing weakly as he tried to defend himself against attacks he couldn't perceive.
"It's pathetic, really," Catherine mocked, steering her broom lower, drifting down toward the helpless boy. "All that raw, beautiful talent. All that golden potential. And you fall apart the moment you lose your eyes and ears. You relied too much on your natural gifts, little knight. You never had to struggle."
She hovered just a few feet away from him, preparing to cast the final, parasitic drain that would suck the youth and vitality from his bones.
Inside the silent, black void of his own mind, Yuno forced himself to stop moving.
He stood perfectly still. Flailing wildly would only exhaust his reserves and leave him completely open to a fatal strike. He needed to think. He needed to find a way out of this trap.
His mind flashed back to a dirty, muddy church in the Forsaken Realm. He remembered watching a short, loud, magicless boy doing thousands of pushups in the dirt, screaming at the top of his lungs, refusing to give up even when his muscles failed and his hands bled.
Asta wouldn't panic, Yuno realized, a sudden, cold calm washing over the rising tide of his anxiety. Asta wouldn't surrender just because he got pushed into a corner. He would find another way to fight.
Yuno took a slow, mental breath, centering his thoughts.
He was a Wind Mage.
Throughout the history of the Clover Kingdom, those blessed with the wind attribute were always known for one specific, highly specialized trait. They were not always the most physically destructive, nor were they the most durable. But they were, without a doubt, the greatest sensory mages in the clover kingdom.
The wind touched everything. It wrapped around every building, brushed against every person, and carried the vibrations of every single movement across vast distances.
Until this moment, Yuno had never really needed to push his sensory abilities to their absolute limits. He had always been so overwhelmingly powerful, endowed with such a massive, crushing mana pool and a four-leaf grimoire, that he could simply blast his way through any obstacle his eyes could see. He had relied on his physical sight and his raw offensive output to win his battles.
But now, stripped of his eyes, his ears, and his skin, he was forced to look deeper.
If he couldn't see the physical world, he would have to see the magical one.
Yuno stopped trying to feel the cobblestones under his feet. He stopped trying to force his deadened eyes to pierce the blackness. Instead, he turned his entire focus inward, sinking deep into the core of his own magical energy.
He reached out not with his hands, but with his mana.
It was a difficult, unnatural transition. At first, there was nothing but the same empty void. But as he pushed harder, concentrating with a fierce, unwavering intensity he had never tapped into before in his entire life, the darkness began to shift.
It didn't return to the visual world of colors and shapes. Instead, the void began to fill with currents of energy.
He felt a faint, pulsating ripple in the nothingness. It was a dense, ugly knot of gray magic hovering just a few feet in front of him and slightly elevated. It radiated malice and vanity.
Catherine, Yuno realized, his mind sharpening into a razor's edge.
He pushed his awareness further. He stopped viewing his wind magic as just a weapon to be fired from his palms. He realized that the air surrounding him was an extension of his own nervous system. Every microscopic shift in the atmosphere, every disturbance in the ambient mana of the ruined plaza, painted a flawless, three-dimensional map directly into his brain.
He could "see" the ruined fountain behind him through the way the air currents broke against the jagged stone. He could "feel" the heat of the distant fires through the thermal updrafts rising into the sky.
His sensory ability, forced into a corner by the threat of death, shattered its previous limits and skyrocketed to an entirely unprecedented, monstrous level. He wasn't just sensing mana anymore; he was reading the very fabric of the world through the wind.
Catherine, entirely unaware of the profound evolution happening within the silent, blinded boy, raised her hand. Her fingers glowed with a sickly gray light as she prepared to drain him dry.
"Goodbye, beautiful boy," Catherine sneered, lunging forward to press her hand against his forehead. "Your youth belongs to me!"