The familiar jolt of resurrection tore through Kim Hyu-Gi, a sensation that had become as routine as drawing breath, yet no less agonizing. His eyes snapped open to the cacophony of war: the shriek of demonic beasts, the clash of steel, the screams of the dying. He was back, again, at the besieged city's walls, the stench of blood and burning pitch thick in the air. His arm, which had been severed moments before by a hulking Brute Demon in his previous iteration, was now whole, though a phantom ache lingered, a cruel echo of the system's 100% realism. "Formation! Hold the line!" a grizzled knight roared, his voice hoarse from endless shouting. Kim Hyu-Gi found himself in his usual position: a replaceable cog in a desperate defense, wielding a dented sword and a chipped shield. The Princess, always at the center of their futile efforts, was a distant figure, her pale face a beacon of despair, surrounded by the elite paladins. His role, as always, was to simply survive long enough to serve as a distraction, a momentary shield for those deemed more valuable. He pushed forward, a nameless knight among thousands, each struggling against the overwhelming tide of hellish invaders. This time, he focused on the Imps, their numbers legion, their small blades deceptively sharp. He ducked under a clumsy swing, thrusting his sword into the creature's chest, the noxious black blood spurting onto his gauntlet. Another lunged, and he parried, feeling the jarring impact travel up his arm. His movements were becoming more efficient, born of countless repetitions, yet the sheer volume of enemies was a constant, insurmountable wall. Hours bled into minutes, or perhaps minutes into hours; time was a meaningless construct in this endless loop of combat and death. He remembered his last death clearly: a pack of Shadow Wolves, their forms blurring in the night, had dragged him down, tearing at his throat before he could even raise his shield. Before that, it had been a Gargoyle, swooping from the smoke-choked sky, snatching him up and dropping him from a dizzying height. And before that, a failed attempt to flank a towering Siege Golem, crushed under its obsidian fist. Each death was a stark lesson, a brutal reinforcement of his insignificance. He was not a hero here; he was merely fodder, a statistic. Yet, even as his body failed, his mind began to adapt. The panic, which had once seized him with every resurrection, was slowly giving way to a cold, analytical detachment. He was a scientist in a grotesque laboratory, experimenting with death, gathering data on the demon army's relentless assault. "Their formation… it's not random," he muttered to himself, parrying a spear from a lesser Demon, its skin like cracked obsidian. The Berserkers always charged first, creating openings for the ranged Imp archers. The larger Brutes followed, exploiting the chaos. The Shadow Wolves, he'd noticed, were always held in reserve, unleashed when the human lines showed signs of fracturing. They were the executioners, designed to mop up the stragglers and ensure no one escaped. His current objective was to hold a section of the inner wall, a desperate last stand before the main gate inevitably fell. He watched as a cohort of human pikemen were engulfed by a wave of smaller, more agile demons. Their screams were cut short. He learned from their mistakes. Their formation had been too rigid, too slow to adapt. He needed fluidity, unpredictability, a way to move through the maelstrom without becoming ensnared. He tried a new tactic. Instead of holding his ground, he began to weave, using the enemy's own density against them. He dodged, ducked, and weaved, always moving towards the gaps, the momentary weaknesses in their overwhelming numbers. It was exhausting, a constant drain on his stamina, but it kept him alive for a few crucial seconds longer than before. He was a fish in a shark-infested sea, constantly swimming, constantly evading. The other knights, locked in their brutal, head-on clashes, barely noticed his frantic, almost cowardly movements. Skepticism from stronger comrades was a given. When he briefly found himself fighting alongside Sir Kael, a burly knight with a lion-emblazoned shield, Kael merely grunted, "Stick close, boy. Don't be a liability." Kim Hyu-Gi absorbed the insult, focusing instead on Kael's fighting style, the brutal efficiency of his broadsword. Kael was strong, yes, but he was also predictable. The demons were learning his patterns, too. Kim Hyu-Gi had seen Kael fall to a coordinated attack from three Brute Demons in a previous loop. He died again, this time trying to establish a temporary safe corridor through a collapsing section of the market district. A collapsing timber beam, loosened by a demon's siege attack, fell directly on him. The world went black, a fleeting moment of peace before the searing agony of rebirth. He woke up, once again, near the city gates, the battle raging. This cycle of death and rebirth was slowly forging him into something new. The fear hadn't vanished entirely, but it was now a familiar companion, a dull background hum. What had replaced it was a burning curiosity, a relentless drive to understand the mechanics of this hell. He was no longer just fighting for survival; he was dissecting the battlefield, studying the demonic forces like an entomologist studies insects. Each failure was a data point, each death a catalyst for deeper analysis. The Princess’s escape route, the primary objective, felt impossibly distant, but he was beginning to see the faint, almost imperceptible threads of opportunity within the overwhelming despair. He just needed to die a few hundred more times to truly grasp them. He watched a group of elite Shadow Assassins slip through a seemingly solid defensive line, their movements silent, their blades precise. They were targeting the archers on the wall, creating a momentary disruption. *A flanking maneuver, but disguised as a direct assault*, he noted. *They used the chaos to hide their true objective.* This observation, small as it was, felt like a flicker of light in the endless darkness. His survival wasn't just about his own strength; it was about understanding the enemy's strategy, anticipating their next move, and exploiting the tiny cracks in their seemingly impenetrable assault. The determination solidified, cold and sharp, pushing aside the despair. He would keep dying, he would keep learning, until the calculus of this hellish battlefield finally yielded a solution.

Chapter 40: The Calculus of Repetition