The Forbidden Integration

The smell of ozone and burnt hydraulic fluid clung to the walls of Mina’s sub-level workshop, a suffocating perfume of industrial decay. Kaelen sat strapped into the pilot’s cradle of his frame, the Rust-Bucket, listening to the rhythmic, unnatural thrum of the Salvage Core embedded in his chassis. It wasn't just a machine part; it was a parasite. Every time it pulsed, a cold, hollow ache blossomed in his chest—a direct tax on his own nervous system.

"The Academy isn't just flagging your frame for seizure, Kaelen," Mina said, her voice raspy from years of breathing recycled air. She stood over the console, her fingers dancing across the interface. "They’ve black-listed your neuro-signature. If you step onto the Trial Ladder with this hardware, the security grid won't just disqualify you. It will lock your core and vent your cockpit to the vacuum."

Kaelen gripped the control sticks, his knuckles white. The monitor displayed the looming deadline: Ranking Audit Cycle: 48 Hours. His frame, once a proud piece of salvaged engineering, was now an 'Unregistered Experimental Hazard.'

"Then I need to be faster than their sensors," Kaelen gritted out. "The Core gives me the output to bypass their limiters. I can hit the mobility benchmarks they think are impossible for a bottom-tier frame."

Mina stepped closer, her eyes hard, reflecting the flickering neon of the workshop. "It’s not a battery, you idiot. It’s a relic of a pre-collapse era. It doesn't run on electricity; it runs on biological potential. Every time you push the frame, it will drink your stamina. If you go too deep, it won’t just burn the engine—it will burn you."

"Then I’ll make sure the burn is worth it," Kaelen replied. He signaled for the link-up. Mina slammed the final lock, and the sensation was immediate. Cold, jagged energy surged through his neural port, binding his heartbeat to the frame’s reactor. The Rust-Bucket groaned, the metal plates shifting as the Core demanded more than just fuel; it demanded a piece of him.

"Sync rate is climbing," Mina warned, her tone stripped of its usual cynical detachment. She was staring at the diagnostic readout, her brow furrowed. "The core is siphoning your bio-electric field to bridge the gap in the circuitry. If you push the output, you’re the fuel."

Kaelen didn't hesitate. He slammed the throttle forward. The Core pulsed, a violent, violet light bleeding through the frame’s plating. The workshop ceiling groaned, dust raining down as the frame’s thrusters roared with a power that defied its rusted exterior. The machine didn't just move; it shrieked. For a heartbeat, Kaelen felt the world sharpen—the velocity, the weight, the sheer, intoxicating potential of a high-tier frame. Then, the drain hit. A sharp, searing pain tore through his spine, and his vision tunneled. He was winning the battle against the machine’s latency, but he was losing his own vitality with every millisecond of output.

Just as he brought the frame to a shuddering halt, the workshop’s monitors flickered to life. A high-definition feed of the Academy’s central plaza pushed through the interference, showing the towering, pristine spires of the upper levels. The screen cut to a static-filled broadcast. Valerius Vane appeared, his face a mask of effortless, polished superiority. He stood before a crowd of cheering cadets, his own sleek, Academy-standard mech looming behind him like a predator.

"To the scavenger who thinks he can climb the ladder with scrap-metal tricks," Vane said, his voice echoing with cold, practiced arrogance. "I, Valerius Vane, officially issue a formal challenge. Meet me on the Trial Ladder in the next cycle, or forfeit your license and your life."

Kaelen slumped in the cockpit, the Core still humming against his nerves, hungry and waiting. He had his proof of power, but the cost was already etched into his blood. He had a ladder to climb, and the champion was already waiting at the top.