The world was dissolving into a suffocating white soup.
Koyuki knelt on the vibrating permafrost, the cold biting through her torn leggings. But it wasn't just the cold anymore; it was the heat. A localized, unnatural thermal inversion was taking place directly in the center of the Rainbow Glaciers.
The ancient, oven-like vessel—the "Shrine"—was screaming.
GLUG-THUMP. GLUG-THUMP.
Thick, iridescent fluid pumped through the exposed roots of the machine, glowing with a toxic, neon spectrum of pinks and greens. As the "Rainbow" coolant circulated, the surrounding ice monoliths began to weep. Massive sheets of rime ice sloughed off the ancient machinery, crashing to the ground and instantly sublimating into thick, blinding fog. The air tasted of wet rust and old, stagnant water that had been boiled violently back to life.
Dotō stood amidst the rising steam, his black chakra armor slick with condensation. He spun in a circle, his heavy boots splashing in the growing puddles of slush.
"What is this?" Dotō roared, his voice amplified by the suit but edged with panic. He kicked a rusted conduit. "Where's the treasure? I was told there was literally treasure here! Gold! Ancient weapons! The legacy of the Kazahana!"
Koyuki stared at the massive heating element pulsating before them. The realization hit her like a physical blow, followed immediately by a hysterical, bubbling laugh.
"Heh... hehehe..."
Dotō whipped around, his face contorted. "What is funny?"
"YOU. IDIOT!" Koyuki screamed, her laughter turning jagged and manic. She pointed at the hissing pipes, at the steam rising into the indigo sky, at the pathetic, rusted miracle of it all. "It's a heater! It's just a giant heater! My father didn't hide gold... he hid the spring!"
The veins on Dotō's forehead bulged. The blue tubing on his chest plate flared bright white as his heart rate spiked.
"This is it?!" Dotō bellowed, the sound echoing off the melting glacier walls. "A FUCKING GIANT HEATER?!"
"KOYUKI!"
The roar of an engine cut through the fog. A small, overloaded snowmobile drifted around a melting ice pillar, its treads chewing through the slush. Naruto hung off the side, his eyes burning red, flanked by Sylvie, Neji, and Tenten. The film crew trailed behind on a separate sled, Yomu leaning out with the camera rolling, capturing the steam and the rage.
"NO!" Dotō snarled.
He moved with the speed of a hydraulic piston. He grabbed Koyuki by the back of her dress, hauling her up as she attempted to scramble away.
"THIS IS—"
Dotō looked at the rusting machine. He looked at the girl. He looked at ten years of wasted ambition.
"BULLSHIT!"
He screamed the word, a raw tearing sound, and hurled Koyuki to the ground.
She hit the ice hard. Her head cracked against an exposed rock, a flash of white light blinding her for a second. The world swam, but she forced her eyes to stay open. She was weak, dizzy, blood trickling warm down her neck, but she was awake.
Dotō didn't look at her. He slammed his armored hands together.
CLACK-HISS.
"ICE STYLE: BLACK DRAGON BLIZZARD!"
He punched the empty air. The chakra vents on his gauntlet exploded. It wasn't clean white snow that emerged; it was a dark, swirling vortex of compressed ice and particulate matter—dirty, heavy, and violent. The chakra formed into the shape of a massive, serpentine dragon, its maw gaping wide as it surged toward the approaching snowmobile.
"RASENGAN!"
Naruto leaped from the moving vehicle. He didn't look human. His whiskers were thick, his pupils vertical red slits. A sphere of chaotic, swirling blue energy formed in his palm, grinding against the air like a buzzsaw.
He collided with the Black Dragon in mid-air.
BOOM.
Physics was absolute. The mass of the dragon—tons of compressed ice driven by industrial-grade chakra—overwhelmed the boy.
"NARUTO!" Koyuki screamed.
Naruto was blown skyward, a ragdoll in an orange jumpsuit spinning out of the explosion. He arced high, plummeting back toward the jagged rocks.
Sylvie was already moving. She leaped from the snowmobile, calculating the trajectory instantly. She slid on her knees through the slush, arms outstretched, and caught him just before impact. They skidded together, stopping inches from a bubbling vent of steam.
Naruto rolled out of her grip, growling low in his throat. He shook his head, droplets of red chakra sizzling as they hit the snow. He looked at Dotō with a hatred so pure it felt like heat.
"Naruto, please..." Sylvie whispered, her hand hovering over his shoulder, checking for broken bones.
"Naruto, stop!" Koyuki yelled from the ground, clutching her bleeding head. "He's going to kill you! You can't beat the armor!"
Naruto ignored the tyrant. He turned, blinking the red haze from his eyes, and reached up. Sylvie took his hand, hauling him to his feet. He swayed, the gear-device on his stomach smoking, but he stood.
"Naruto... we need to work together..." Sylvie urged, her voice tight with clinical fear.
Naruto sniffed, rubbing his nose with the back of his hand. The feral look faded slightly, replaced by that stubborn, impossible grin.
"Just... have faith in me," he said, looking across the melting ice at Koyuki.
Then, he turned his gaze to Sylvie. "And I promise... I won't lose."
Sylvie closed her eyes for a moment, exhaling a breath she seemed to have been holding since they entered the fortress. She opened them, looking directly into his slit pupils.
"I believe it."
She looked back at Koyuki.
Koyuki felt the blood dripping down her neck. She felt the heat of the generator vibrating in the ground. She looked at the boy who refused to stay down.
Slowly, painfully, Koyuki nodded.