The tunnel descended deep into the earth, walls constructed of reinforced concrete and reinforced steel. Dim emergency lights flickered along the corridors, casting eerie shadows. Genos activated his infrared sensors, scanning for life forms ahead.
"Detected multiple life forms in the lower levels," he reported, his voice echoing through the cold tunnel. "Elevator systems, research labs, possibly containment chambers."
The flickering emergency lights finally died completely, plunging the underground facility into darkness. Genos switched to infrared mode, his red eyes cutting through the blackness. The twisted metal walls, the shattered containment cells, the dried blood stains—everything revealed in gruesome detail.
Then, Genos froze. His sensors picked up a massive presence ahead. "Life form detected. Extreme physical prowess. Biological readings..."
From the shadows ahead, a massive, humanoid figure emerged—Carnage Kabuto. He walked slowly, dragging a screaming, terrified Dr. Genus clone by the neck. The doctor's eyes were wide with fear, tears streaming down his face. Kabuto's gaze shifted between Yoshino and Genos, his voice a menacing growl. "Pick one... I kill the other."
The doctor's voice cracked, desperate and pleading. "Please... don't take Yoshino! I need him for my experiments! His energy signature is unlike anything I've ever encountered! He's invaluable!" He was sobbing, terrified of being abandoned by Kabuto. "Kill Genos instead! He's just a machine!"
Kabuto's eyes flickered between Yoshino and Genos, his expression unreadable but lethal. The doctor continued to babble, his face pale with desperation.
"Yoshino is the one Dr. Genus wants! Unfathomable energy! Invaluable for experimentation!" He gestured at Genos with a sneer. "He's nothing but scrap metal!"
Genos didn't wait. His incineration cannon charged, unleashing a devastating blast at Kabuto's face. The white-hot beam consumed the corridor—but Kabuto didn't even flinch.
With blinding speed, Kabuto closed the distance. A single punch shattered Genos's chassis like glass. The cyborg flew backward, crashing through multiple walls, his systems critical.
Genos lay in the rubble, his systems critical—limbs severed, incineration cannon destroyed, processors malfunctioning. His red eyes flickered weakly.
Kabuto turned back to Yoshino, still holding the terrified doctor. The doctor was shaking violently. "Please... kill Genos... kill the machine... Yoshino is for experiments... we NEED him..."
The impact was deafening. A crackle of black lightning exploded from Yoshino's fist, the devastating power of a Black Flash connecting directly with Kabuto's chest. The massive insect hybrid stumbled backward, his eyes widening in shock.
For the first time, Kabuto felt pain—real, searing pain. His body jerked, a sickening crack echoing through the corridor.
The effects were immediate. Yoshino's skin glowed faintly red, his pulse thundering like a war drum. Every muscle in his body tightened and expanded—superhuman strength, speed, reaction time amplified to dangerous levels. His cursed energy signature shifted violently, blood cells circulating with a strange, dark intensity.
Kabuto recovered, his eyes narrowing as he sensed the shift. "You..."
Yoshino's hand plunged into his shadow, pulling out the cursed gauntlets. The black metal material, etched with ancient runes, slid onto his forearms like a second skin. The clawed fingertips glinted dangerously, ready for close-quarters tearing and piercing.
Kabuto's eyes widened as his combat instincts screamed. He dropped Dr. Genus, stepping back.
Yoshino's fingers moved with precision, coating each gauntlet with a thin, lethal layer of Dismantle and Cleave. The cursed technique hummed beneath the metal—any contact would now trigger invisible slashes. Punching someone wouldn't just break bones; it would shred muscle, sever tendons, and slice through flesh like a hot knife through butter.
Kabuto's body contorted violently—his skin turning a deep, menacing green, his muscles swelling and expanding. He grew significantly larger, his already imposing frame now towering over the corridor. His eyes lost all rationality, replaced by a mindless, berserk rage.
The air pressure shifted—the sheer killing intent making the walls crack. Carnage Mode activated.
With a roar that echoed like thunder, Kabuto charged. The floor buckled and cracked beneath his massive feet, each step sending vibrations through the underground facility. In Carnage Mode, his strength and speed were multiplied—dangerous on an already lethal level. He didn't punch or kick; he simply collided with Yoshino like a freight train.
"Die, human!"
The collision was devastating. Yoshino's body took the full force of Kabuto's Carnage Mode charge—his ribs shattered, skin lacerated, blood spraying. But then, something strange happened. The wounds closed instantly, the bones knitting back together. Yoshino's body simply... adapted. He healed completely within seconds, untouched by the brutal attack.
Kabuto's eyes flickered with shock—he'd thrown everything at Yoshino, a brutal, life-ending attack. Yet the human stood there, fully healed, completely unscathed. His cursed energy signature shifted—adapting, evolving, overcoming the onslaught.
"Impossible," Kabuto growled, his voice distorted by berserk rage. "Nothing survives that!"
The corridor became a warzone. Kabuto unleashed relentless Carnage Mode fury—punches that shattered concrete, slashes that tore through steel. But each impact only made Yoshino stronger. His fists faster. His movements more precise.
Every time Kabuto landed a hit, Yoshino adapted—his skin toughening, his speed increasing, his cursed energy signature evolving.
The fight was brutal. Kabuto's Carnage Mode strikes were devastating—each punch cracking walls, each kick sending tremors through the facility. But Yoshino was evolving with every exchange. His cursed energy signature shifted and adapted—becoming denser, more potent. His speed increased beyond Kabuto's comprehension. His reflexes sharpened, predicting every movement before Kabuto even conceived it.
The tide had completely turned. What was once a brutal exchange had become a one-sided slaughter. Yoshino danced around Kabuto's Carnage Mode fury—every strike that once shattered concrete now met nothing but air. His fists were faster, his movements precise, his cursed energy signature overwhelming.
Kabuto's strikes missed repeatedly—each swing met by Yoshino's calculated counters.
With a cold, calculating gaze, Yoshino brought his fist forward—a simple punch targeted at Kabuto's chest. But as contact was made, a sharp crack echoed through the corridor. The Dismantle cursed technique triggered—invisible slashes tearing through Kabuto's Carnage Mode armor like paper.
Blood sprayed. Internal organs were sliced.
The impact was devastating. Kabuto's Carnage Mode armor shattered, blood sprayed everywhere. The doctor screamed as he witnessed the sheer power of Yoshino's cursed technique. Genos's systems wailed warnings—this was no longer a fight; it was a systematic dismantling.
"What... are you?" Kabuto growled, his voice strained.
Kabuto's body finally gave way. The combination of multiple Black Flashes, constant adaptation, and the final Dismantle strike had torn through his Carnage Mode defenses completely. His massive green form collapsed, lifeless. The insect hybrid was dead—finally, truly dead.
Dr. Genus screamed, scrambling backward.
Yoshino stood there, breathing calmly, completely unharmed.
The underground facility fell silent, the only sound the dripping of blood from the walls and the terrified whimpers of Dr. Genus. Yoshino's cursed energy signature settled—adaptation complete. He had survived Carnage Mode and emerged untouched.
Dr. Genus scrambled back against the reinforced walls, his eyes wide with absolute terror. "PLEASE! Don't kill me!"
"Genos You can go ahead and leave. Get yourself Repaired I will handle the doctor."
Genos, still critical but stabilized, nodded slowly. His red eyes flickered weakly, processing the destruction around him. "Understood... I'll head back for repairs." His damaged body sparked weakly. "Be careful with that doctor."
With stiff, limping steps, Genos exited the underground facility, leaving Yoshino alone with Dr. Genus.
"OK doctor here's the deal. I know you rescued mosquito a girl after I defeated her and destroyed her blood Bag make sure she's alive and well for the next time we meet and feel free to upgrade her with carnage Kabuto's blood."
Dr. Genus trembled violently, his words catching in his throat. "Y-Yoshino... I..." He swallowed hard, terrified. "Mosquito Girl is alive... I rescued her after you destroyed her blood bag... she's recovering in my private lab..." He nodded frantically. "And the blood... Carnage Kabuto's blood... I have samples... I can upgrade her..."
"Good all I want from you is to stop doing your experiments and we're good."
Dr. Genus nodded frantically, tears streaming down his face. "No more experiments... I swear! I'll focus entirely on upgrading Mosquito Girl and keeping her alive and well for you!" He was babbling, terrified of another encounter with Yoshino. "Carnage Kabuto's blood... she'll be unstoppable next time... I promise!"
"Good I'll see you later." He said, leaving me, underground facility,
Dr. Genus nodded quickly, not daring to make eye contact. "Yes... yes, sir. I'll see you later." He watched the human leave, his body still trembling violently from the encounter.
Yoshino walked out of the underground facility, the cold night air hitting his face. The destroyed corpse of Kabuto still lay in the corridor behind him.