His pupils turned an eerie crimson colour while invisible spiritual fluctuations spread outward.

The monsters stiffened abruptly.

Their movements froze completely.

"They’re surprisingly weak against mental attacks."

Su Mo observed calmly.

"That’s one weakness confirmed."

The monsters remained standing motionlessly beneath the illusion. Their intelligence clearly wasn’t high enough to properly resist Devil’s Eyes.

Yang Qingxi watched silently from a distance atop King.

Even now, she still found Su Mo’s eye abilities troublesome.

Illusion-type abilities were indeed annoying enough.

But Su Mo’s version was outright unreasonable sometimes.

Unaware of her thoughts, Su Mo casually pointed toward the monster standing on the left.

"Air Bullet Technique."

BOOM!

Compressed wind exploded outward instantly.

The invisible projectile slammed directly into the monster’s chest and blasted it backwards through several trees before crashing heavily onto the ground.

Wood splintered everywhere.

The creature’s body became partially crushed from the impact.

However, it still didn’t die.

Su Mo’s eyes narrowed thoughtfully.

"This one is definitely weaker than the previous monster."

He slowly walked toward it while analysing carefully.

"Probably around Qi Condensation Stage strength."

The monster’s broken body twitched grotesquely while slowly trying to stand again despite remaining trapped inside the illusion.

"How annoying."

Su Mo crouched beside it thoughtfully.

"The physical durability is strangely high."

He glanced at the surrounding shattered trees.

"My Air Bullet should’ve torn apart ordinary Qi Condensation cultivators."

Yet this creature merely suffered heavy injuries.

"Is it because of their physique?"

"Or do they have elemental resistance? Then how did the previous one die?"

Su Mo tapped his chin thoughtfully.

"Maybe only wind resistance?"

There was only one way to confirm it.

Without hesitation—

"Fireball Technique."

A massive fireball condensed above Su Mo’s palm.

The surrounding temperature instantly rose.

Then—

BOOOOM!

The giant fireball shot forward violently and swallowed the heavily injured monster entirely.

The creature didn’t even attempt to dodge. Perhaps because of the illusion.

Or perhaps because it physically couldn’t react in time.

The flames burned intensely.

Dark smoke erupted outward.

After several seconds, nothing remained except black ashes and scorched earth.

Su Mo’s eyes immediately lit up.

"They are weak to fire."

He smiled slightly. 𝒇𝒓𝒆𝒆𝙬𝒆𝒃𝓷𝒐𝓿𝙚𝙡.𝒄𝓸𝒎

"So the earlier show of durability really was resistance against wind-type damage."

Yang Qingxi also quietly memorised the information.

In dangerous places like these, understanding enemy weaknesses could save lives later.

"What about the others?" she asked.

Su Mo looked toward the remaining three monsters.

"Let’s continue testing."

This time, a small metal knife floated before him.

The sharp blade gleamed coldly within the dark forest.

SWISH!

The knife instantly sliced through one monster’s arm.

The severed limb fell onto the snowy ground.

However, no blood appeared. Not even inner flesh.

The severed surface resembled dried, rotten wood more than a living body.

The arm itself looked shrivelled and hollow internally.

Su Mo frowned slightly. "That’s strange."

Even Yang Qingxi felt disturbed watching it.

The monsters resembled living corpses more and more.

Su Mo observed the severed limb thoughtfully before suddenly raising his hand.

"Let’s try healing."

A soft green light appeared above his palm.

Normally, his Healing Technique could instantly regenerate lost limbs or repair severe injuries.

However, the moment the healing light touched the monster—

SSSSSSS!

Dark smoke suddenly emerged.

The monster’s body began melting like black wax exposed to sunlight.

Its flesh rapidly dissolved into a viscous dark liquid before evaporating completely into smoke.

Within moments, half the monster’s body disappeared entirely.

"What the hell?"

Su Mo genuinely looked shocked now.

Yang Qingxi also frowned deeply. "How could healing cause damage?"

Su Mo stared thoughtfully at the evaporating remains.

Then slowly, his gaze sharpened slightly.

"I don’t think it’s the healing itself... It’s probably the Yang Energy."

Yang Qingxi became thoughtful.

Su Mo’s healing technique naturally contained extremely pure life force and Yang-type energy.

If these monsters truly belonged to pure Yin-type undead creatures... then the reaction made sense.

"It has a high possibility," she admitted quietly.

Su Mo nodded slowly.

At least now they had another confirmed weakness.

Fire, Yang Energy, and Mental attacks.

He inwardly felt far more reassured.

Unknown enemies were the most dangerous enemies.

But once weaknesses became exposed...

They immediately became much less threatening.

"Now then..."

Su Mo looked toward the third monster.

A dangerous curiosity suddenly appeared in his eyes. An absurd thought had already taken root inside his mind earlier.

And unfortunately—

Once Su Mo became curious about something, he found it extremely difficult to ignore.

[Can these monsters become Demonic Servants?]

The more he thought about it... the more tempting the idea became.

After all, if successful, wouldn’t he gain terrifying undead servants from these mountains?

Without hesitation, Su Mo activated Demonic Imprint.

Dark spiritual energy condensed into an eerie eight-horned skull pattern floating in midair.

The symbol radiated a sinister aura before diving directly into the monster’s body.

The creature convulsed violently.

Its twisted limbs spasmed uncontrollably.

Several seconds later, the monster suddenly collapsed lifelessly onto the ground.

The imprint process had failed.

"...Sigh."

Su Mo looked disappointed. "So it doesn’t work."

Yang Qingxi looked rather speechless.

Only Su Mo would casually attempt turning horrifying monsters into personal servants.

Then Su Mo glanced toward the final remaining monster. This one remained standing silently under illusion.

[I shouldn’t waste all the samples.]

[If I encounter more later, I can continue experimenting.]

With a thought, several metal bands shot out from Su Mo’s storage ring.

The metal rapidly transformed into liquid form before wrapping around the monster’s body entirely.

Its mouth, claws, limbs—

Everything became tightly restrained.

For additional insurance, Su Mo layered the Hypnosis Technique and another illusion on top of it until the creature completely lost consciousness.

Only then did he finally store it inside his storage ring. Even the corpse of the other monster wasn’t wasted. Su Mo stored that too.

Yang Qingxi watched everything silently. After a moment, she spoke, "...You really treat these monsters like research materials."

’Does he have a strange kink for research? After I return, maybe I should transfer the company’s research lab under Su Mo’s name.’