The tunnel ahead swallowed the light.
Aiden stepped down onto the tracks, the gravel crunching softly beneath his boots. The air was colder here, and the faint metallic smell was stronger. Each breath carried the taste of rust and something else—something sharp and unnatural.
The distortion pulse was clearer now.
Slow.
Heavy.
Like the heartbeat of something buried beneath the earth.
Behind him, the silver-haired girl hopped down from the platform with an easy motion.
"Well," she said, stretching her arms slightly, "if we're working together, I should at least know your name."
"Aiden."
She nodded once. "Simple. I like it."
"And you?" he asked.
She hesitated for a moment.
Then she said, "Elira."
Ignis raised an eyebrow. "That's not your real name."
Elira smirked. "Did I say it was?"
Aiden didn't press the issue.
Names mattered less than intentions in places like this.
They began moving down the tunnel.
The emergency lights grew sparser the deeper they went, until the only illumination came from the faint glow of the distortion energy ahead.
Aiden's senses remained sharp.
Every sound felt louder here.
The crunch of gravel.
The drip of water from the ceiling.
The distant hum of unstable energy.
Elira walked slightly ahead, her hand resting loosely near the hilt of her sword.
"You move like a hunter," she said without looking back.
"I am one."
"Not just any hunter," she replied. "You don't flinch. Not even down here."
Aiden glanced at her. "You sound disappointed."
She shrugged. "Just curious. Most people would be nervous."
Ignis chuckled softly. "He stopped being 'most people' a long time ago."
Another pulse rolled through the tunnel.
Stronger this time.
The rails vibrated faintly beneath their feet.
Elira stopped.
"It's close," she said.
Aiden nodded. "How many creatures?"
She closed her eyes for a moment, sensing the energy ahead.
"…Three," she said. "No, four. Small ones. Probably spawned from the unstable core."
Aiden drew his blade.
"Then we clear them first."
Elira smiled. "Finally. Something interesting."
The first creature appeared around the bend in the tunnel.
It was small compared to the ones Aiden had faced before, but its body was warped and unstable, like a mass of dark crystal and flesh fused together. Its limbs moved in jerky, unnatural motions.
Its hollow eyes locked onto them.
Then it charged.
Aiden moved first.
One clean step forward.
One precise slash.
The creature split apart, its core shattering instantly. Its body dissolved into drifting fragments of unstable energy.
Elira blinked.
"…That was fast."
Aiden didn't reply.
Because the other three were already coming.
Two monsters leapt from the side walls, their claws scraping against the concrete as they lunged.
Elira drew her sword in a smooth motion.
Her blade shimmered faintly with a pale blue glow.
The temperature in the tunnel dropped instantly.
She spun once, her sword carving a clean arc through the air. A wave of frost followed the strike, freezing one of the monsters mid-lunge.
The creature shattered into icy fragments before it even hit the ground.
Aiden finished the second with a quick thrust, piercing its core.
The last monster hesitated.
Just for a second.
Long enough for Ignis to step forward.
Her golden eyes flashed.
A small burst of flame flickered in her palm—nothing dramatic, just a concentrated spark of draconic energy.
She flicked it forward.
The monster didn't even have time to scream before it collapsed into ash.
Silence returned to the tunnel.
Elira stared at Ignis. "You're not human."
Ignis smiled sweetly. "Very observant."
Elira shook her head slightly. "I knew something felt strange about you."
She looked back at Aiden.
"You've got interesting company."
"I get that a lot," he replied.
They continued deeper into the tunnel.
The air grew heavier with each step.
The distortion pulse was no longer subtle.
It was constant.
Like standing next to a slow, pounding drum.
Finally, the tunnel opened into a larger underground chamber.
And at its center—
A distortion core.
It floated just above the ground, about the size of a human torso. Dark energy swirled around it, forming unstable rings that flickered in and out of existence.
Thin streams of energy fed into it from the walls, like veins carrying blood to a heart.
Elira's expression hardened. "That's bigger than before."
Aiden studied the core carefully.
"It's being fed from multiple points," he said. "Someone set this up deliberately."
Ignis's eyes glowed faintly. "Yes. There's a structure to it. A pattern."
Elira frowned. "So we just destroy it, right?"
Aiden didn't answer immediately.
Instead, he stepped closer, observing the energy flow.
"No," he said. "If we break it now, the unstable energy will explode outward. The entire tunnel system could collapse."
Elira crossed her arms. "So what's the plan, genius?"
Aiden pointed to the walls.
"Those channels," he said. "We cut off the energy supply first. Then destroy the core."
Elira followed his gaze.
Four glowing veins of distortion energy stretched from the walls into the floating core.
She smirked. "Divide and conquer, huh?"
Aiden nodded. "Exactly."
The system flickered again.
[Mission Update]
Objective: Disrupt all energy channels
Remaining Channels: 4
Time Until Stabilization: 18 minutes
Elira whistled softly. "We've got a timer now. I like the pressure."
Ignis looked at Aiden. "How do you want to split it?"
Aiden considered the layout.
"I'll take the two on the left," he said. "Elira, you take the right side."
She grinned. "Bossy already."
"You said you wanted something interesting."
She drew her sword again. "Fair point."
They moved at the same time.
Aiden reached the first energy vein and struck it with a precise slash. The channel shattered, the energy stream dispersing into the air like mist.
[Energy Channel Destroyed: 1/4]
He moved to the second one.
Another clean strike.
[Energy Channel Destroyed: 2/4]
Across the chamber, Elira spun gracefully, her blade leaving trails of frost in the air. She sliced through one of the channels, freezing it before it shattered completely.
[Energy Channel Destroyed: 3/4]
She turned toward the last one—
But before she could strike, the core pulsed violently.
A shockwave of distortion energy blasted outward.
Elira stumbled back. "It's reacting!"
Aiden's eyes narrowed. "The core is trying to stabilize early."
Ignis stepped forward. "Then we don't have time to be careful."
Elira gritted her teeth and charged.
Her blade flashed once.
The final energy channel shattered.
[Energy Channels Destroyed: 4/4]
The core trembled violently.
Without its energy supply, the swirling rings around it became unstable, flickering wildly.
Aiden stepped forward, blade ready.
"This is it," he said.
Elira stood beside him, her sword raised.
Ignis watched from behind, her eyes glowing faintly.
"End it," she said.
Aiden took a step closer to the core—
And the system activated again.
[Hidden Condition Met]
Temporary Contract Initiated: Frostblade – Elira
Bonus Reward Unlocked:
??? (Sealed)
Aiden's eyes widened slightly.
Elira blinked. "What was that?"
Ignis smiled. "Congratulations. You just signed a system contract."
Elira frowned. "I don't remember agreeing to anything."
Aiden didn't have time to explain.
The core pulsed again—stronger this time.
"Talk later," he said. "Destroy it now."
He raised his blade.
And struck.