『The Hesitation of Rust』
The final bell shrieked through the halls of Lamar High like a starter's pistol, and just like that, the building exhaled.
Classrooms emptied in a rushing tide—lockers slamming, sneakers squeaking, voices rising from the usual after-school chatter into something hungrier, sharper. No one lingered over trig homework or weekend plans. The real day was just beginning.
Training. Dungeons. Power.
Here, the school day didn't end.
It evolved.
Jasper wove through the current of bodies, Arti and Sieg flanking him like silent bodyguards. The three of them moved with purpose toward the back fields, where the academic buildings gave way to something far less ordinary.
Behind the main complex stretched the Training Grounds—a sprawling, reinforced compound ringed by thirty-foot steel walls veined with faintly glowing runic circuits. At its heart stood the Gate Simulator: a massive circular dais of blackened alloy and mana-forged crystal that pulsed with cool blue light. Artificial. Controlled. (Mostly) safe.
A loose crowd had already formed around the viewing rails—upperclassmen leaning forward, underclassmen bouncing on their toes, everyone whispering the same things.
"What is it running today?"
"Low-tier sim. Goblin trash."
"Easy cores if you don't choke."
Jasper stopped near the edge of the pack, eyes locked on the simulator. The 「Legendary Spare Key – E+」 rested warm against his sternum, heavier than it had any right to be.
"…So this is really it," he murmured.
Arti gave a single nod, cracking his knuckles. "First real step."
Sieg crossed thick arms over his chest. "Controlled environment. Low mortality risk." A beat. "Still dangerous."
The key gave a faint, almost affectionate throb against Jasper's skin.
A scarred instructor strode onto the central platform. Tall, jaw like chipped granite, voice cutting through the buzz without effort.
"Eyes up here."
The crowd snapped quiet.
"This is a Mortal Realm Dungeon Simulation. Goblin-class entities only. Threat ceiling: D to low C. You are not licensed hunters. You are not heroes. Pairs or trios maximum. Maintain visual contact with at least one instructor at all times."
He swept the students with a look that could peel paint.
"If you panic, raise your hand. We extract. Immediately. Try not to make me fill out paperwork because you decided to be stupid."
A thin, humorless smirk tugged at his scarred mouth.
"Gate's opening in thirty. Groups to the ready line."
The simulator flared brighter. Blue light coiled inward like water spiraling down a drain. Then the portal tore open—liquid sky swirling in perfect silence.
Jasper felt it instantly: that same distant tug he'd carried in his dreams for weeks. A real Gate. Even simulated, it pulled at something inside him.
Arti rolled his shoulders. "Well?"
Sieg was already stepping forward. "I take point."
Arti's smirk was lazy. "Of course you do."
Jasper exhaled through his nose, fingers brushing the key.
Then the three of them crossed the threshold.
Reality folded.
Afternoon sunlight vanished.
They stood in a dim, dripping forest.
Twisted black trees leaned inward. Moss clung like wet velvet. A faint green mist drifted ankle-high, carrying the unmistakable perfume of damp rot and feral musk.
Jasper swallowed hard. "This already feels worse than I pictured."
"Stay alert," Arti said, calm as ever.
Sieg crouched a fraction, senses dialed to eleven. "Movement. Eleven o'clock."
Rustling.
Three goblins burst from the underbrush—short, green, crooked, yellow eyes gleaming with simple, vicious hunger. They shrieked and charged.
"Contact," Sieg said, voice flat.
The lead goblin leaped.
Sieg met it mid-air. One clean pivot, fist driving upward— CRACK. Skull collapsed like wet cardboard. The body dropped limp.
Jasper blinked. "…Noted."
The second goblin rushed Arti.
Arti stepped into range with casual grace. His hand brushed the small sword pendant at his throat. A shimmer rippled—steel materialized in his grip, not the full blade, just an Echo of it. A Sword with a large rock, barely a boulder, was stabbed onto the tip of the blade.
One economical slash. The rock crashed into the Goblin's sternum. The goblin folded in half and hit the dirt.
Jasper stared. "You've been holding out on me."
"Maybe," Arti said, already turning.
The third goblin lunged at Jasper. Claws flashed. Jasper stumbled back—too slow.
Instinct screamed. He threw his arm up.
The key flared hot against his chest.
Time stuttered.
For one fractured heartbeat, something manifested behind him.
Not solid.
Not even fully visible.
Just a golden ripple in the air—as reality itself had flinched.
The goblin's claws stopped inches from Jasper's throat.
Halted.
Not blocked.
Just… paused.
Then the ripple collapsed.
The goblin resumed its swing—
Sieg was already there.
CRASH.
Fist met jaw. Goblin rag-dolled into a tree and stayed down.
Silence swallowed the clearing.
Arti stared at Jasper. "You saw that, right?"
Sieg nodded once. "Abnormal."
Jasper looked at his trembling hands. "That… wasn't me."
Arti tilted his head. "Pretty sure it was."
Before Jasper could argue, slow clapping echoed from the trees.
They turned.
Marcus stepped into view, Elliot and Daichi at his shoulders.
Marcus's grin was wide. "Didn't expect the charity case trio to show up."
His eyes flicked to Jasper—then froze on the key.
The rust was peeling away in thin curls. Fresh gold gleamed underneath.
Marcus's smile slipped. "…Huh."
Elliot stepped closer, gaze clinical. "Evolution. F-rank to at least E+. Maybe higher."
Daichi said nothing. His stare was heavier.
Jasper instinctively edged back. "It's just a key."
Marcus snorted, but the mockery sounded thinner now. "Still trash."
Elliot adjusted his glasses. "We'll see."
A scream ripped through the forest—not goblin, human.
High. Panicked.
Arti muttered, "That's not simulation."
Sieg was already moving. "Investigate."
Marcus cracked his neck, a grin returning full force. "Now we're talking."
They pushed through tangled branches.
The scream had come from a wider clearing.
At its center crouched something that did not belong in a D-rank sim.
A Hobgoblin Brute.
Gray stone-like skin. Arms like felled logs. Easily C+—maybe pushing B-.
A first-year lay crumpled nearby, leg bent wrong, breathing shallow.
No instructors in sight.
Elliot's face darkened. "That's an anomaly. Not scripted."
Marcus laughed low. "Guess we drew the bonus round."
Daichi's aura thickened, dark and heavy. "Or the death round."
The brute roared. Trees shivered.
Jasper felt the key ignite again—hotter, brighter, insistent.
The same voice brushed his mind, faint as smoke.
«Slay monsters…»
Fear still coiled in his gut.
But resolve rose beside it, stubborn and new.
Arti stepped up beside him. "We take it together."
Sieg nodded.
Marcus summoned a spectral Fenrir snout-first, jaws already snapping.
Daichi's silhouette flickered—horns, shadow, rage.
Elliot stayed back, analyzing angles.
The brute charged.
The ground shook.
Sieg met it first—a collision like thunder. He held for a second, then staggered.
Arti darted in, Echo-blade carving precise arcs across thick hide.
Fenrir lunged, teeth sinking into the shoulder.
Daichi struck last—dark aura condensing into a crushing palm that cracked ribs.
The brute roared louder, swinging wildly.
Sieg took a hit square to the chest—flew back, skidded.
Arti stumbled.
Marcus snarled. "Tough bastard!"
Jasper's pulse hammered in his ears.
The key burned like a brand.
He stepped forward.
"…Okay."
"Okay."
He lifted his hand.
Nothing at first.
Then—
A golden ripple bloomed behind him.
Unstable.
Flickering.
A miniature gate trying—and failing—to exist.
Everyone froze.
Daichi's eyes widened a fraction. "…What is that?"
The ripple stretched, violent and incomplete.
From inside it, something metallic glinted—golden, ancient, only the tip visible, the sound of jingling chains filled the air.
Then it collapsed.
Jasper staggered, gasping.
But the burst of raw energy that escaped still lanced forward.
It struck the brute mid-swing, the sound a heavy chain striking something.
The monster staggered.
Marcus didn't waste the opening.
"NOW!"
Fenrir clamped down.
Arti's rock on the tip of the blade slammed into its head.
Sieg drove upward with both fists.
Daichi finished it—dark palm slamming through chest plate.
The hobgoblin collapsed in a heap, dust rising around it.
Silence.
Only heavy breathing and dripping ichor.
Jasper sank to one knee, trembling—not from fatigue, but from whatever had just torn loose inside him.
Marcus stared at him. No grin this time. Just assessment. "…Yeah. That ain't normal."
Elliot's faint smile held something like respect. "Not even close."
Daichi turned fully toward Jasper.
Quiet. Certain. "You're hiding something."
Jasper looked down at the key in his open palm. Gold shone brighter beneath the remaining rust—beautiful, dangerous, awake.
"…Yeah."
He exhaled slowly.
"What if I am?"
He wasn't in the mood to humor their bullshit.
Far beyond the school, beyond the simulated forest, beyond the thin skin of this world…
An ancient gate groaned.
Stone split.
And the gold hidden beneath it burned brighter still.