The Hero Creation Classroom of a Reincarnated Ordinary Person: After Reaching My Limit As An Adventurer, I Reluctantly Opened A Classroom In The Countryside To Earn Money For The Future, And My Student Became The Strongest - Episode 81

In the capital of Seiran, Kongo, there stood a towering mountain to the east, Mount Kisaki.

We were standing at its base, looking up at the dark, ominous mountain.

“Let me go over this again: Reina asked us to investigate the mountain. If we find any belongings of the missing people, we’re to collect them. Yuuri and Milky, you’ll use magic to scan the area, while Louis and I will check what we can see with our own eyes. We’ll work until nightfall… though, it’s already dark,” Anna said with a wry smile.

Seiran was a country known for its frequent rain. It was drizzling even now, with no sunlight in sight, making the surroundings dim and gloomy.

“It makes me miss Cielaira and Marc Magica. This weather is so depressing,” Anna added.
“Maybe ghosts will show up,” Yuuri teased.
“Th-they won’t!” Milky stammered in panic.

Still, the overall mood of the group wasn’t bad. The mission seemed relatively simple—mainly just investigating. However, given that some adventurers sent by the guild had gone missing, we couldn’t afford to let our guard down.

“Alright, let’s go,” Anna said.

With a shared nod, we stepped onto the mountain.

I thought we might feel something unusual as soon as we started, but so far, nothing stood out. The rain had made the path a bit muddy, but we pressed on. Occasionally, our magic picked up some signals, but they turned out to be ordinary creature’s native to Seiran.

“…I heard from the adventurers in town that before people disappeared, they felt a sudden chill,” Yuuri mentioned.
“Yeah, someone I talked to say the atmosphere grew really heavy,” I added.

We climbed further up the mountain, encountering only common monsters. They were strong enough to be a challenge for most, but not for us—our teacher had trained us well.

Despite searching diligently, we found no trace of the missing adventurers or their belongings. We even checked the bushes along the way but came up empty-handed.

“Maybe they disappeared off the main path? But no one mentioned anything like that,” Anna mused.
“Yeah, they all said it was like they vanished into thin air,” Milky agreed.
“It’s unsettling. The townsfolk didn’t seem to be lying, and I doubt the entire town would conspire to trick us,” Milky added thoughtfully.

Her words reminded me of something our teacher once said:

“Adventurers must question everything—people, objects, time, places. Don’t blindly trust anything. While you shouldn’t outright dismiss things, always stay calm and avoid making assumptions. Never stop thinking. The moment you stop questioning, you’ll find yourself unable to escape when things go south.”

What should I question here? What should I be thinking about?

No matter how much I pondered, I couldn’t come up with anything. Our teacher had said even I struggled with this in the beginning, so I supposed it was normal.

“Wait,” Anna suddenly said.

We all stopped and looked to where she was pointing—a cave.

“A cave?”
“Yes, Mount Kisaki is said to have several caves, many of which are interconnected,” Yuuri confirmed.
“That’s what I heard too. Let’s take a look,” I suggested.

I moved closer to the cave and focused. Closing my eyes, I tried to sense anything unusual, but all I could hear was the rain outside. There was no breeze, and if the cave was deeply twisted, it might explain the lack of airflow.

“Hmm, I don’t sense anything. It doesn’t seem to connect to anywhere either.”
“Should we check it out anyway? We might find something,” Yuuri suggested.
“Let’s. I’m tired of this rain, and some shelter sounds good right now,” Anna agreed.

With everyone’s approval, I entered the cave first.

As expected, there was no airflow. No sound. No sign of people or creatures. Anna, who joined me soon after, seemed to notice the same.

“Let’s hope there’s something here,” Yuuri said, holding up a light spell to illuminate the cave.

The deeper we went, the more unsettling it felt. I couldn’t shake the strange, eerie vibe.

“This place is giving me the creeps,” Milky said nervously.
“Yeah, something feels… off,” Yuuri agreed.
“It’s not ghosts, right? Please tell me it’s not ghosts!” Milky exclaimed, her voice rising in panic.

Ahead of us, Anna suddenly stopped.

“Anna?! What is it? A ghost?!” Milky shrieked.
“No, it’s just a dead end,” Anna replied calmly.
“R-right, a dead end. Of course!” Milky said, visibly relieved.

Checking the area ahead, it was indeed just a dead end. There was nothing remarkable or out of place.

“Looks like this was just an ordinary cave,” I said.
“Let’s head back,” Anna suggested.

As we turned to leave, it happened.

I felt the ground shift beneath me, a sudden sensation of weightlessness.

“What?!”
“Wh-what’s going on?!”
“No, no, no—!”
“Hold on!”

Everyone panicked as the floor gave way. I tried to react, but before I knew it, my vision was dropping, and we were falling into darkness.

Unable to do anything, we were swallowed by the depths below.

“Ah! This is bad!”

“Yuuri, synchronize with me!”

The voices of Yuuri and Milky echoed, and the sensation of falling that had overtaken us started to fade. The ground, which had seemed so far away, drew closer at a steady pace, and we managed to land on it unharmed.

“Ah, thank you, Yuuri, Milky. I thought I was a goner…”

“I-I thought I was done for too… What even was that hole?”

“It just… appeared out of nowhere, didn’t it?”

“…Look over there.”

As we discussed the mysterious hole in disbelief, Anna’s voice reached us. Following her gaze, we froze in shock.

We had fallen into a vast cavern. And at the far end of it stood something large, constructed entirely of wood.

“What… is that?”

“I… I don’t know… but I have a really bad feeling about it.”

In response to Yuuri’s unease, something began to gather. Black, ominous shapes congealed and combined into a form—a gigantic shadow.

“A… monster?!”

“And it’s… enormous…”

Before us stood a massive beast, jet-black, with ferocious fangs. Four long arms jutted from its back, adding to its grotesque form.

“Everyone, get ready!”

At Anna’s command, I grabbed my bow and notched an arrow, keeping my gaze fixed on the creature. Anna dashed forward with her sword, her movements swift and purposeful. I steadied myself, ready to provide cover at a moment’s notice.

Her blade swung down, striking the monster’s abdomen and drawing a pained roar from it. But—

“Anna, watch out!”

Instinctively, I lost my arrow. It struck one of the monster’s arms, but not before its attack sent Anna flying. She had been blindsided by one of the arms on its back.

“You’ll pay for that!”

Milky summoned the C-rank earth spell Rock Lance. Jagged spears of stone erupted from the ground, skewering the creature. Meanwhile, Anna managed to recover, rolling into a defensive position. Though shaken, she seemed largely unharmed. Milky followed up with a healing spell, ensuring Anna’s safety.

“Louis!”

Yuuri’s urgent call brought me back to focus. Quickly, I activated the skill Rain of Arrows. A barrage of arrows rained down on the monster, eliciting guttural growls. In retaliation, the beast slammed the ground with two of its arms and leaped—its massive form clinging to the ceiling like a spider.

“It can move like that?!”

I had assumed its size would limit its mobility. But the creature’s glowing red eyes locked onto Yuuri, its next target.

“Not on my watch!”

I fired another arrow, activating the skill Piercing Strike. The projectile hit its arm, disrupting its movement. At the same time, Milky cast a protective barrier around Yuuri, mitigating the impact of the monster’s attack.

The beast recoiled briefly, giving Anna an opening. She rushed forward with her shield, deflecting the creature’s bulk, and leaped into the air, slashing downward with full force.

“Take this!”

Her B-rank skill Mighty Slash landed squarely on the beast’s torso, a technique I could only admire but not yet replicate. I followed her lead with another Piercing Strike, sending the creature reeling sideways.

‘Impudent fools…’

The monster spoke, its guttural voice like nails on a chalkboard. I froze momentarily, startled by its words.

‘Calling me a monster… Do you know to whom you speak? I am a god.’

“What… It can talk?!” Milky gasped.

‘A god?’ I muttered, unable to mask my disbelief.

The creature sneered, its grotesque grin widening. ‘I am the Great One. Your existence means nothing; you are all but my sustenance.’

Before we could respond, it lunged at Anna with all its might. She raised her shield just in time but was sent flying, her arms trembling from the impact.

“This thing’s strength… It’s on another level…” Anna muttered, her voice laced with frustration.

“Are you okay, Anna?” I asked.

“Barely… but I’ll manage.”

Despite the intense battle, Anna charged back into the fray. We all poured our energy into attacking—every skill, every spell we could muster. Yet, the monster showed no signs of faltering.

“This isn’t working!” I growled.

“We can’t keep this up,” Yuuri cried. “Anna’s shield won’t hold much longer!”

The battle dragged on, each passing second eroding our stamina and morale. We had faced tough foes before, but this monster… It was relentless.

‘Hah… You’re weaker than I thought,’ the creature mocked, slamming the ground with its fists.

It scooped up a chunk of the cavern floor and hurled it at Milky. She dodged, but fragments of stone sliced her arm. Desperately, I fired another arrow to halt its pursuit.

“Damn it… What do we do?!”

We manage to land some effective attacks against the monster.

But they aren’t decisive. They aren’t enough to turn the tide.

“Not happening!”

Yuuri casts her ice spell, Ice Lance, to strike the monster.

This buys enough time for Milky to heal her own wounds.

Thanks to that, we avoided losing Milky—the backbone of our support. But only just.

“Ugh…”

Anna’s at her limit.

She’s barely standing, holding her sword arm with her other hand. Bl00d streams down from her head, one eye closed as if it stings too much to keep open.

Even though Milky’s healing spell reaches her, its effect is sluggish—Milky’s energy is almost gone too.

The footsteps of total annihilation grow louder, creeping ever closer.

“Damn it… something… anything…”

I think. And think again.

How can we defeat that monster?

Yet all I can do with my arrows is restrict its movement.

I’m too weak. I don’t have enough power to finish it off.

I… I am…

“You’re skilled, but honestly, weak.”

My teacher’s words suddenly flash through my mind.

“Well, so am I. I don’t have the otherworldly strength of someone like Eve. But even so, we can’t just give up. When you face a powerful enemy, what do you do? What can we do? There’s only one answer: Do the best you can with the skills you’ve got.”

My teacher’s words in my memory sync with my own.

I close my eyes for a few seconds, taking a deep breath to calm myself.

When I open them, I fix my gaze firmly on the monster.

What kind of divine being? What kind of god?

From the start, I’ve called it for what it is—a monster.

It’s just a beast.

If it’s a beast, then it can be defeated, killed.

And like any other monster, it must have a weakness.

I look closely. I focus hard.

There. I see it—a glaringly obvious weak spot.

I nock an arrow, draw the string.

I clear my mind of distractions, repeating to myself: faster, faster, faster.

Then I release.

And just like I’ve done countless times before, the arrow flies straight and true.

My D-Rank skill, Piercing Swift, finds its Marc, striking the monster—or rather, the beast—directly in its red eye.

“Milky! Support magic! Yuuri, cover me!”

I shout and dash forward.

My body feels lighter instantly as support magic flows into me, while blades of wind slash at the monster from every angle.

In the chaos, I nock another arrow and fire Piercing Swift again.

Look. Look. Look.

I force myself to focus on every detail.

The next target is just left of the other eye. Move, monster.

“You insolent—ugh!?”

Yuuri’s final spell, Stream Edge, forces the monster to turn its face away.

And into my waiting arrow.

The second arrow lands perfectly on its remaining eye.

“You wretched…!”

The monster roars in frustration, but I’m already moving.

I kick off the ground with all my strength, closing the distance to take a closer look.

My arrows can’t deliver the killing blow. Neither can Anna’s sword nor Yuuri’s magic.

But I can use something that can.

I spot a sharp, massive rock overhead—a perfect weapon.

I calculate where to strike and prepare to act.

I unleash my skill, Rain Volley, sending a flurry of arrows into the ceiling.

Just as I aimed, the arrows create cracks, and the enormous jagged rock breaks free.

Gravity does the rest, driving it down toward the monster with crushing force.

“GRUUUAAAHHHH!!”

The sharp rock pierces the monster from top to bottom, pinning it to the ground.

“Anna!!”

I shout, but she’s already moving.

Before I can even finish calling her name, Anna rushes in.

With one last burst of strength, she charges the roaring monster.

She’s now in range to end this.

“You vermin! If I were at full power, insects like you would be nothing!”

“This… ends here!”

Anna swings her sword down with every ounce of strength she has left.

Her blade strikes true, cutting through the monster’s head in one clean stroke.

“Aaaaahhhhhh!!”

The monster’s final scream pierces our ears, so loud and unnatural it feels like it’s inside our heads.

We all clutch our ears reflexively as the sound reverberates again and again.

When the noise finally dies down…

“Ugh… that was brutal…”

Anna drops to her knees, and I rush over to her.

She’s covered in wounds but still conscious—she’ll recover after some rest.

“It’s over… right?”

“Yeah, it’s over. Barely, though.”

“Thank goodness… that was too close.”

I place a hand on Anna’s back, reassuring her as I look at the monster’s lifeless body.

(During that horrible sound… I thought I saw something leave the monster’s body…)

It looked like it was rising toward the sky, but I couldn’t tell what it was—or if it was even real.

For now, I just kept my gaze fixed on the monster’s corpse.