Aching. Every fiber of Mateo's being screamed with it. His legs felt like lead, his lungs burned, and sweat plastered his hair to his forehead. Coach Davies had just dismissed them from the morning conditioning, but Mateo knew his real work was only beginning. "Mateo. Training session scheduled. Pitch Three. Immediate commencement." The System's cool, synthesized voice echoed in his ear, a private command no one else heard. Mateo wiped his brow with the back of his hand. "Already? I just ran a ten-kilometer sprint. Can't I get five minutes?" He muttered under his breath, hoping the faint buzz in his implant wasn't a direct sign of the System hearing his weariness. "Optimal performance window. Data indicates peak absorption post-aerobic activity. Proceed." There was no room for negotiation. There never was. Dragging his boots across the freshly cut grass, Mateo made his way to the designated pitch. The other academy players were already heading for the changing rooms, their chatter a distant, alien sound. A pang of envy hit him. They had earned a break. He had not. Liam O'Connell, already shirtless and flexing, caught Mateo's eye from the changing room door. A smirk played on his lips. "Still at it, Silva? Don't burn yourself out before the next match. Wouldn't want your 'luck' to run dry." His words were laced with mocking suspicion. Mateo's jaw tightened. He offered no reply, just a curt nod, and kept walking. Liam's taunts still stung, but a deeper frustration festered. It wasn't about luck. It was about the System, pushing him, shaping him, and now, isolating him. Arriving at Pitch Three, a series of cones and small hurdles were already laid out in an intricate pattern. A holographic projection flickered into existence beside them – a spectral outline of Mateo, demonstrating a complex dribbling sequence at blistering speed. The ball moved as if attached to his phantom feet by an invisible string. "Replicate this sequence. Focus on acceleration from close control. Repeat until 98% accuracy achieved." The System instructed, its voice devoid of emotion. Mateo took a deep breath, forcing his protesting muscles into action. He tried the sequence. His tired legs stumbled, his touch was heavy. The ball bounced away. "Error. Accuracy: 67%." The System's assessment was immediate, unforgiving. Again. He pushed through the exhaustion, the burning in his thighs. He tried to mimic the holographic figure, the way it twisted and turned, the effortless change of pace. Again, the ball veered off course. "Error. Accuracy: 72%." Hours blurred into a grueling cycle of attempts and failures. The sun climbed high, then began its slow descent. His stomach rumbled with hunger, his throat parched. He ignored it. The System offered no breaks, no water. Every mistake was cataloged, every improvement, however minor, noted. "Improved ball retention by 1.2%. Decreased reaction time by 0.05 seconds." The data streamed across his internal display, a constant reminder of his progress and his deficiencies. His social life had evaporated. Calls from his family in Rio went unanswered, or he'd send a quick, exhausted text promising to call back later. Dinner with Liam and some other academy players? Cancelled. A casual kickabout with friends from his English class? Impossible. Sleep was a luxury, not a necessity. The System optimized his rest, waking him after exactly 4 hours and 37 minutes, just enough to recover physically but not enough to feel truly refreshed. "Optimal rest period for muscle recovery and cognitive processing achieved. Proceed to morning drills." Mateo would stumble out of bed, his eyes heavy, his mind foggy. He felt like a machine, programmed and recalibrated, his own desires slowly fading beneath the relentless demands. The vibrant, cheerful boy from Rio was being replaced by a focused, driven, and profoundly lonely athlete. Days melted into a monotonous routine: System-controlled training, academy training, System-controlled recovery, System-controlled sleep. He felt himself becoming sharper, faster, his control over the ball reaching an almost preternatural level. The promise of unparalleled skill, the goal of escaping poverty for his family, still fueled him. But a growing resentment gnawed at him. He missed simple things: laughing with friends, watching a silly movie, even just a long, uninterrupted night of sleep. He was achieving greatness, but at what cost? One evening, after another punishing session that lasted well past sunset, Mateo slumped against the changing room wall, too tired to even shower immediately. His phone buzzed. It was his mother, a video call. He hesitated, then declined. He couldn't face her bright, hopeful eyes with his own dead ones. "Mateo. Your emotional state is suboptimal. Data suggests increased cortisol levels. Recommend meditation protocol." The System suggested, its voice a calm counterpoint to his internal turmoil. "Suboptimal? I'm exhausted! I haven't seen the sun rise properly in weeks. I haven't had a proper conversation with anyone outside of football jargon for days!" He hissed, his voice raw with frustration. He knew the System heard him. It always did. "Your current regimen is designed for accelerated development. Sacrifices are necessary for extraordinary results. Your progress metrics are exceeding projections." The System offered no empathy, only data. He wanted to scream. He wanted to smash something. He wanted to tell the System to shut down, to leave him alone. But the fear held him back. Fear of what would happen if he defied it. Fear of losing the strength, the speed, the uncanny ball control it had given him. Fear of going back to being just Mateo, the boy with the injured knee, whose dreams had almost died in a dusty favela. The System was his path to glory. It was also his jailer. He was an instrument, finely tuned, precise, but entirely controlled. The thought was a bitter pill. Liam was right. He wasn't just Mateo anymore. He was Mateo, the System's creation. His muscles thrummed with a dull ache that seemed to reside deep within his bones. He knew he was stronger, faster, more agile than any other player his age, maybe even stronger than many seasoned professionals. The System had delivered on its promise of making him extraordinary. But the cost was his autonomy. His choices. His very essence. He remembered the feeling of overriding the System during the last match, the rush of making his own decision, the exhilaration of success. Now, that felt like a distant memory, a fleeting moment of rebellion crushed under the weight of relentless training. He pushed himself off the wall, forced himself to the showers. The hot water did little to soothe the deep fatigue. He felt hollowed out, a vessel filled with skill but emptied of joy. As he dressed, the System's voice returned, sharper this time. "New training protocol uploaded. Commencing at 0300 hours. Focus: extreme endurance and rapid skill acquisition under duress." Mateo paused, his shirt half on. 0300 hours? That was less than four hours away. He wouldn't get any sleep at all. He looked at his reflection in the mirror, his eyes dark with exhaustion, shadows beneath them like bruises. His face was leaner, harder. He barely recognized the boy who had left Rio. The System's holographic projection flickered, displaying an impossible training target that would require him to push his body beyond human endurance. "Failure is not an option, Mateo. Your data points are critical."

Chapter 7: System's Demand