They ran until their lungs burned.

  Rin didn’t know how long they had been fleeing. The ruins all looked the same—gutted concrete, skeletal vehicle frames, walls blackened by ancient pollution. The sky remained motionless, frozen in a dirty gray hue that made it feel as though time itself had stopped.

  When they finally stopped, it was from exhaustion rather than safety.

  “C-Can we… catch our breath?” Jin-woo panted, hands on his knees.

  No one answered.

  Mi-sun scanned their surroundings, tense as a wire pulled too tight. Dae-hyun supported Young-mi with all his strength. The elderly woman had lost a lot of blood. Her face was pale, her breathing wheezing and shallow.

  “Set me down,” she murmured.

  They had taken refuge in what looked like an old underground maintenance station. A wide circular chamber, partially collapsed, but with only two visible entrances. Rusted rails cut across the floor, vanishing into darkness.

  “It’s too open,” Mi-sun said.

  “It’s better than outside,” Dae-hyun replied. “She won’t last otherwise.”

  Rin studied the entrances.

  Two exits.

  A decent defensive position… if someone knew how to defend it.

  The System said nothing.

  No notification.

  No update.

  As if it were waiting.

  Ha-joon knelt beside Young-mi, still clutching the blood-soaked cloth, tightening it despite his trembling hands.

  “Ma’am… stay awake, okay?”

  She gave him a faint smile.

  “You’re brave, you know…”

  “I’m not brave,” he whispered. “I’m just scared.”

  Rin looked away slightly.

  Fear wasn’t a flaw here.

  “Alright,” Jin-woo said, breaking the silence. “We need to talk, don’t we? We can’t just keep running forever.”

  Mi-sun stared at him.

  “What do you suggest?”

  “I don’t know. But staying like this, waiting for something to drop on our heads, is suicide.”

  “Everything is suicide,” she replied coldly. “The only difference is how much time you buy before you die.”

  Her tone killed any attempt at humor.

  A faint vibration pulsed behind Rin’s eyes.

  The interface appeared.

  [Tutorial – Phase 1]

  Time Remaining: 68h 17m

  A number.

  Time was truly passing.

  Stolen from its rightful author, this tale is not meant to be on Amazon; report any sightings.

  “The countdown…” Dae-hyun muttered.

  “So when it reaches zero…?” Ha-joon asked, unable to finish.

  The System answered for him.

  [End of Tutorial.]

  Rin frowned slightly.

  “Great,” Jin-woo muttered. “Not even a clear victory condition.”

  Young-mi coughed violently. Blood stained her lips.

  “Listen to me,” she said suddenly, her voice unexpectedly firm.

  They turned toward her.

  “I’ve lived a long life. Long enough to understand one thing… When a world changes overnight, it’s not the strongest who survive. Nor the kindest.”

  She struggled for breath.

  “It’s those who accept losing something.”

  Silence settled again.

  Rin felt the words sink deep.

  Losing something.

  In games, he always rejected that option.

  He reloaded.

  He restarted.

  But here…

  There was no Restart button.

  A metallic sound echoed from the left tunnel.

  A heavy impact.

  Then another.

  Rin froze.

  That wasn’t a Sharprat.

  Too slow.

  Too heavy.

  The System reacted a fraction of a second too late.

  [Warning.]

  [Unknown entity approaching.]

  Mi-sun stood immediately.

  “We can’t stay.”

  “She can’t run,” Dae-hyun said, his voice breaking.

  “Then we split up,” Mi-sun proposed after a brief pause.

  The words fell like a verdict.

  Ha-joon looked up, panicked.

  “What…?”

  “Two groups. Those who can draw it away. The others find somewhere safer.”

  “You want to abandon her?!” Jin-woo shouted.

  Mi-sun didn’t look away.

  “I want to survive.”

  Something cracked within the group.

  Not a clean break.

  But an irreversible fracture.

  In the tunnel’s darkness, a silhouette began to take shape.

  Tall.

  Bipedal.

  Oozing.

  Rin stepped back.

  And for the first time since this began, a thought crossed his mind that he had never considered before:

  What if, this time, the best route didn’t exist?

  The tutorial continued.

  And someone here would not see its end.

  Rin found himself trapped in a narrow corridor, Ha-joon to his left, Mi-sun watching the entrance from the opposite side. Dae-hyun lagged behind, doing his best to support Young-mi. Jin-woo—true to himself—had vanished in the chaos, sprinting toward an uncertain exit while the others were distracted.

  The tunnel behind them swallowed the echo of the creature’s heavy steps, but the resulting silence was not comforting.

  It was active silence.

  The kind that watched.

  The kind that could shatter at any moment with a single heavy step or a muffled scream.

  “W-What do we do now?” Ha-joon whispered.

  “We can’t stay,” Mi-sun replied coldly. “It’ll come back. It tracks us—by scent, by sound.”

  Rin averted his gaze briefly.

  He had already assessed the terrain: two exits, no real cover, and a disorganized group.

  Pure logic told him they had no chance if they acted without strategy.

  He placed a hand on Ha-joon’s shoulder—not to comfort him, but to set a rhythm. A direction.

  “Listen… we need to decide who draws that thing away and who finds shelter,” he said calmly.

  Mi-sun looked at him, surprised.

  In this world, hesitation was lethal. Rin knew that. And that was precisely why he remained calm.

  He was used to observing first. Understanding before acting.

  The chaos around him didn’t shake him as much as the urgency of the decision.

  Rin scanned the corridor, noting exit points, shadows, rubble that could serve as improvised traps. He evaluated Ha-joon—fragile but reactive. Dae-hyun—strong, but slowed by carrying Young-mi. Mi-sun—fast, cold, willing to take risks. And Jin-woo… gone.

  “We split into two groups,” Rin said evenly. “Mi-sun and Ha-joon—you draw the creature away. Dae-hyun and Young-mi—you find somewhere defensible. I’ll stay here and… assess.”

  Silence fell.

  The air felt heavy.

  Ha-joon started to protest, but Mi-sun placed a hand on his shoulder.

  “That’s how it is, Ha-joon. If we want to survive, we don’t have a choice.”

  Rin watched them move away, then focused on the data forming in his mind: movement speed, behavioral patterns, reaction windows.

  Every decision. Every micro-movement of the creature could be analyzed. Anticipated.

  Then a translucent notification appeared before him.

  [Notification: Your profile is gradually taking shape.]

  [Analysis in progress.]

  [Actions and decisions observed.]

  Rin blinked.

  The cold, impersonal message didn’t frighten him.

  On the contrary—it confirmed what he had always felt.

  The System left nothing to chance.

  Every choice counted.

  Every sacrifice would be recorded.

  Every strategy evaluated.

  Rin inhaled slowly.

  Survival was no longer about luck.

  It was an equation.

  And he intended to solve every variable with precision.

  “Ha-joon,” he murmured, turning to the boy. “I can’t protect you all the time. You need to stay calm. Observe. Follow the plan. Even if it’s hard—you have to trust me.”

  The boy nodded. His eyes were wide, but attentive.

  Fear was no longer an obstacle.

  It was data.

  Rin then looked toward the tunnel entrance, where Mi-sun and Ha-joon had disappeared into the dark.

  Every second mattered.

  This world did not forgive hesitation.

  And for the first time, Rin felt ready to play a role no one had chosen for him—

  The silent strategist.

  [Objective: Survive.]

  [Time Remaining: 66h 42m]

  The countdown continued.

  Relentless.