The Regressed Extra Becomes a Genius Chapter 15

7:30 AM.

With the first class starting at 9:00 AM, the school was still empty, creating an air of stillness.

Walking through the hallway, I pushed open the door to Class 2-A.

Clatter.

The door revealed an empty classroom. As expected, no one was around this early in the morning.

“…As I thought.”

Ding!

[Achievement unlocked: “Be the first to arrive at school.”]

[Reward: 500 points.]

As I thought!

Just like in my previous life, arriving first triggered the achievement.

In this world, even small actions like this could lead to hidden achievements.

Last night, I had wrote down all the achievements I could remember from my past life.

Thanks to the “Memory” trait I gained in my previous life, I was able to recall everything.

“What’s next…?”

After unpacking my things, I stepped back into the hallway and headed toward the janitor’s supply closet at the far end.

At this school of magic, students didn’t do cleaning—it was the janitors’ domain.

Inside, I grabbed a broom, a dustpan, and a mop. Then, I began sweeping the hallway.

About 20 minutes later, a message appeared before my eyes:

[Achievement unlocked: “The Helpful Ghost.”]

[Reward: 1,000 points.]

“Got it!”

I immediately stopped cleaning.

My only goal was the achievement and points. Since I’d already achieved that, there was no need to continue.

Fifteen hundred points in such a short time—it was a solid gain.

If I kept gathering points like this, I’d soon have enough to unlock a decent trait.

I gathered the cleaning tools to return them to their original place when I heard footsteps nearby.

“Kim Sunwoo?”

A clear voice called my name.

Turning, I saw Yoo Ara looking at me.

“Yoo Ara?”

“Good morning.”

True to her polite nature, she greeted me warmly, then glanced at the cleaning tools in my hands.

“Have you been cleaning?”

“Yeah.”

“Why?”

“…Just felt like it.”

Her gaze swept over the hallway.

Spotting the now gleaming floors, she paused thoughtfully.

“…You’re surprisingly diligent.”

She murmured as if reassessing me.

Before I could respond, another voice called out.

“Oh my, students arriving so early in the morning!”

Turning, I saw an older female teacher smiling as she approached.

She had taught our Classical Magic Theory class just two days ago.

Yoo Ara and I both bowed in greeting.

“Good morning.”

“Good morning.”

“My, arriving early before class starts. Both of you are so diligent!”

Her unexpected compliment made both of us awkwardly nod in response.

Then her eyes landed on the cleaning tools in my hands.

“Sunwoo, were you cleaning?”

“Yes, ma’am.”

Her gaze softened, a hint of pride visible.


“Monsters come in many forms: humanoid, animalistic, and flying types, among others, totaling over ten categories.

Most of you learned this in your first year, but today, as it’s our first class, we’ll start with a review of the basics.”

The morning’s first class was Monster Biology.

The 40-something male teacher displayed holograms of various monsters, and the students watched with interest.

It was quite a contrast to the usual boredom of Classical Magic Theory.

“Now, let’s test how much you remember from your first year.

Can anyone explain this monster in detail?”

He gestured, and a hologram appeared, showing a monster with a body made entirely of stone.

I raised my hand without hesitation.

The teacher smiled as he noticed me. Nearby, someone muttered, “Him again?”

“Yes, you there… Kim Sunwoo, right?”

“That’s correct.”

“I’ve heard from the faculty that you’re very proactive in class. Let’s hear your answer. Stand up, please.”

I stood, meeting his eyes.

“That monster is a Stone Giant. It inhabits open plains or rocky mountains and is generally submissive. Its behaviour patterns and weaknesses are…”

I rattled off my explanation like an encyclopedia.

Satisfied, the teacher beamed.

“Excellent! Perfect answer.”

Ding!

[Achievement unlocked: “Beloved Student.”]

[Reward: 2,000 points.]

Huh?

An achievement I didn’t know about?

In my previous life, I must not have met the requirement, which probably involved gaining enough attention from multiple teachers.

Realizing I’d fulfilled it, I couldn’t help but smile.

“Sunwoo, something good happen?” the teacher asked, noticing my expression.

“No, nothing,” I replied, quickly wiping the smile from my face.

He nodded, seemingly satisfied.

“All right, take your seat.”

I bowed lightly and sat back down.

The lesson continued.

“Now, about the origins of monsters…”

“Monsters, huh?”

Thinking about it, there were plenty of achievements tied to defeating monsters. Hunting specific types, killing a certain number, and other tasks related to them. Hunting monsters to earn achievements wasn’t a bad idea.

But there was something that offered even more points than monsters.

The demons.

They appeared human and could blend in among them, controlling monsters as the root of all evil. Demons who transformed into humans were indistinguishable without special tools.

Demons had already deeply infiltrated the human world, taking on roles as artists, celebrities, activists, soldiers… even rising to high-ranking positions like politicians.

Knowing the original storyline, I was aware of some of the demons hiding in this world. I also knew the identities of several key demons who became major antagonists in the main scenario.

“Demons…”

Tomorrow was Saturday.

With the weekend ahead, I had the time to prepare. And I knew a demon would appear in the city tomorrow—an event from the original storyline.

It would mark the first appearance of the demon, Jang Han, in front of Lee Seo-jun.


The faculty office was usually a harmonious place. Each teacher had their specialty, and mutual respect prevented any major conflicts.

“Is something wrong today? Did you two have a fight?”

However, the atmosphere in the office today was markedly different. Cold and tense, it was clear that the previous night’s argument between Kim Yun-jinand Lee Hee-young hadn’t been resolved.

“It’s nothing you need to worry about, Mr. Jang,” Lee Hee-young replied curtly, making Jang Ancheol awkwardly return to his desk. He knew better than to meddle in others’ affairs.

Time would eventually smooth things over.

Just then, a middle-aged teacher entered the office.

“Ah, Mr. Park Jung-woo, good work today.”

“Whew, you were right—Class A is so engaged during lessons. It’s a pleasure to teach them.”

At Park Jung-woo’s comment, a senior teacher chimed in with a warm smile.

“Right? I had my first class with them recently, and the students were so attentive. Especially Kim Sun-woo.”

“Kim Sun-woo? Yes, that student was exceptionally enthusiastic today.”

Hearing Sun-woo’s name, Kim Yun jin and Lee Hee-young instinctively paid closer attention.

“Oh, by the way, did you hear? I arrived early this morning and saw Sun-woo cleaning the hallway.”

“Cleaning? Why?”

“I’m not sure. But it seems like he occasionally does these things quietly. It was a cleaning staff member’s day off today, wasn’t it?”

One of the teachers gaped in surprise.

“Did he feel someone had to do it, so he just stepped up? That’s remarkable. Really commendable.”

“I know, right? He’s so active and attentive in class. It’s admirable. Of course, it’s unfortunate he’s ranked last in school, but grades aren’t everything.”

“True. And despite being teased by the entire school after that test video went viral, he doesn’t seem discouraged. That resilience is commendable.”

“Ugh, I read some of those video comments—they broke my heart.”

As the teachers discussed Kim Sun-woo, Kim Yun-jin stood up and approached Jang Ancheol.

“Mr. Jang?”

“Yes, Ms. Kim? What’s the matter?”

“About Sun-woo… has he said anything about changing his main specialization?”

“Specialization?”

Jang Ancheol thought for a moment, then seemed to understand her intent.

“Ah, yes. I suggested he switch to the support magic yesterday, but he flat-out refused.”

“Did he, now?”

Kim Yun-jin bit her lip.


“Afternoon classes are for support specializations, huh?”

“Ugh, I hate those. Why can’t we just focus on our main ones?”

“Same. I can’t stand support magic classes.”

During the break after the morning class, the students were busy chatting in groups.

I, however, was skimming through my student notebook, thinking about which achievements I could aim for over the weekend.

Hmm, what could I do?

Demons, monsters, dungeons, and…

Rattle.

The classroom door slid open, but I didn’t look up, staying focused on my notes.

“Oh? Hello.”

“What brings you here?”

“Hi, everyone. Don’t mind me; just relax.”

Someone had entered the room, but I ignored it.

That’s not important right now.

I kept pondering my weekend plans. Maybe the achievement shop had something like a list of available achievements for sale?

Hmm. I should check.

“Why do you think she’s here?”

“Beats me.”

Click. Click.

Footsteps approached.

Suddenly, the room fell silent.

What’s going on?

Feeling the strange atmosphere, I glanced around.

All the students were staring at me.

What the…?

I looked up and saw a female teacher standing before me, looking down at me with a calm smile.

“Kim Sun-woo?”

“…Yes?”

“I’m Kim Yun-jin, the support specialization teacher.”

“…Oh, yes.”

I knew that already, but why was she here?

“I have a proposal for you.”

“A proposal?”

Her sudden words left me dazed.

Still smiling, she said,

“Switch your main specialization to the support magic, and under my authority, I’ll grant you a special talent scholarship of 50 million won.”

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