The female demon had never seen anyone switch gear so intricately in under a second.

Even she might struggle to match that speed. How could such a lowly human manage it?

"Daydreaming now would be unwise."

Mu Yi hefted his sword-shaped cannon, aiming at the distracted demoness. Blinding plasma surged from the barrel.

The searing bolt tore through the air with a piercing shriek, shattering every rock it passed.

"Pathetic attack."

She scoffed at the incoming plasma, unimpressed.

An intricate obsidian rune-circle materialized before her—a barrier that nullified all magic. Any spell would crumble to dust against it. No need to even...

"...attack?"

Only when the plasma was inches from her face did she realize her mistake.

This wasn’t magic. No arcane scent lingered in that thunder-charged energy.

*Crack—*

Just as she feared, her barrier crumpled like paper.

The very shield that had blocked ultimate spells—even forbidden curses—shattered without slowing the blast.

Electric current flooded her body. A jolt of tingling heat made her thighs clamp tight. Her slender waist arched involuntarily twice before explosive energy erupted around her.

"Merely dusted her off."

Mu Yi whistled lightly, watching the smoke where her silhouette flickered.

"Not magic. Not martial skill. What *is* that uncanny power?"

The demoness emerged from the haze, hovering above the water. Ash streaked her face. Her voice dropped an octave, laced with displeasure—and a faint tremor. A hint of something else.

How could this weak human species push her back? Absurd.

Worse—she’d just shuddered like some... mortifying display before a mere human. Damn it.

"Science."

Mu Yi examined his cannon, studying the demon with interest.

Most monsters he’d met only roared or spat canned lines. No NPC in this game had emotions as vivid as hers.

"Tch. Just a human. I was careless."

She inhaled sharply, quelling her rage. Countless black rune-circles bloomed behind her.

No need to argue with the dead. It’d make her seem petty.

"This coverage area..."

Mu Yi gaped at the sky choked with magic circles. Was she planning to level the entire lair?

"Rest in slumber."

Rising higher, the demoness whispered. Magic trembled around her, corrosive vortexes oozing from her fists.

...Though using this against one human felt childish.

"Can’t blame me for trying to fight back."

Mu Yi scratched his head, grinning awkwardly. *This world boss is seriously OP.*

Her power dwarfed every raid boss he’d ever faced—in scale, range, raw destruction.

"All weapon bays open. Ammunition loaded. Mythic-tier armaments—no, *legendary*."

A silver holographic panel materialized beside Mu Yi’s hand.

His fingers danced across it. A towering spectral gate yawned open behind him.

Golden mythic weapons slid from its silver halo, barrels locking onto the airborne demoness.

"*This man...*"

Her pupils shrank. Behind her mask, shock flooded her face.

She felt the apocalyptic power humming in each weapon. Every single one was a god-tier artifact.

*How?! How could a human wield so many?!*

No. He must die. At any cost. Letting him escape would make him Demon Kin’s deadliest foe.

"**Void Descent.**"

The instant it activated, the air vanished.

Countless black particles plummeted like miniature black holes—a meteor storm of annihilation.

"**Skill: Shockwave Nova.**"

Cannons roared. Blinding fire erupted like a sky-devouring inferno.

Meteor trails blazed upward. Sparks ignited the reefs. The hot spring’s last drops vaporized.

The collision pulverized the ground instantly. Earth shattered. Sky darkened. Heatwaves ripped cracks in the cavern ceiling.

"*Monster...*"

Dodging the chaotic energy surges, the demoness stared down at the man.

This wasn’t human. This was a true monster.

**>**

Dark robes swallowed Mu Yi whole. Like a shadow-assassin, he shot upward on a jet of black energy.

*Charming demoness. Fate brought us together. Let’s share a loving embrace... and a profound communion of body and soul.*