Chapter 18

EP.18 The Education Begins

In a dimly lit bedroom.

I was holding Sehwa, listening to her excuses.

No, it would be more accurate to say I was listening to her clumsy attempt to provoke jealousy.

“Since my boyfriend asked me to hug him… what else could I do but hug him?”

“……”

As I remained silent, Sehwa turned her head to check my expression.

“Are you asleep?”

“No. I’m listening.”

“The hug was only for a moment. But…”

“But?”

“Seunghyun suddenly kissed me.”

“And you let him?”

“I couldn’t say no. He’s my boyfriend… right? Ah!”

Sehwa gasped sharply.

It was because my hand had slipped under her shirt and was fumbling over her bra.

Startled by the sudden touch on her chest, Sehwa twisted her body in surprise.

But as my fingernails traced the valley between her breasts, she froze, shivering.

“You’re wearing something plain again today. I can tell just by touching.”

“……”

Sehwa, seemingly embarrassed, tried to push my hand away.

Next time, I’ll make sure her underwear has a different design.

I easily unhooked her bra.

Sehwa then shrugged her shoulders, letting the straps fall.

I paused, intending to gently tease her nipples to warm her up.

Let’s skip the foreplay. I’ll make her feel pleasure while I thrust.

I roughly turned Sehwa’s body, positioning her beneath me.

Sehwa blinked in surprise at my sudden action.

“Lift your hips.”

“……”

“Quickly.”

My tone was much softer than before.

Perhaps reassured, Sehwa silently lifted her pelvis.

I unbuttoned her jeans and pulled them down, tossing them to the side of the bed.

“Will you take off your shirt, or should I do it?”

Sehwa swallowed hard.

The sound of her pounding heart was clear in my ears.

Sehwa was clearly very flustered.

Last time, she was so excited her head was spinning, but now it was different.

Everything was too vivid, and that made her even more scared.

But her eyes sparkled with an inexplicable anticipation.

Though she felt guilty for exposing her naked body, which even her boyfriend hadn’t seen, her desire to feel pleasure from me was stronger.

Her guilt, born from betrayal, was transformed into desire and pleasure. Eventually, she raised both hands.

A gesture asking me to undress her. I smirked and immediately pulled off her shirt, tossing it onto the jeans.

Sehwa’s pale body was faintly visible in the darkness.

From her slim waist with a straight belly button to her protruding hip bones, everything was incredibly sensual.

Her breasts, like blooming flower buds, fit perfectly in my hands.

Even the way she covered her chest with her arms in embarrassment, and her disheveled hair scattered across the pillow, was beautiful.

Her face, slightly turned away as if telling me not to stare too much, was adorable.

‘You’re mine. Forever.’

I quickly stripped off my clothes.

My body, which I had been building muscle on by lying about exercising, looked just right.

Moderately firm pectorals, clearly defined abs.

Sehwa’s face turned red as she saw my body in the dim light, and her eyes sparkled with curiosity at the bulge in my spandex underwear.

Sehwa’s breathing grew rough, her breaths shallow.

A sign that she was getting excited.

She was already like this without any foreplay. It was astonishing.

“Take it off yourself.”

At the sound of my low voice, Sehwa cautiously moved her hand from her chest to my underwear.

She then gently pulled it down.

As the fully excited glans was revealed, Sehwa’s throat gulped.

Seeing it in person seemed to evoke a strange feeling in her.

Well, last time she had completely covered her face with a pillow…

Sehwa eventually pulled my underwear down to my thighs.

The thick, throbbing penis stood fully erect, slightly trembling before her eyes.

The male organ that had once plunged into her and torn through her barrier.

Was it the female instinct? Sehwa’s legs slightly parted.

Not missing the moment, I spread her legs wide.

“Ah… I’m not ready yet… At least first…”

She seemed to be asking for foreplay first.

I silently shook my head and pushed her panties to the side.

As I pressed the glans against her plump pussy, swollen from the pressure of her panties, Sehwa flinched.

I slowly moved my cock up and down in that position.

Sehwa stammered.

“Gently… please be gentle… then… Ah!”

Sehwa, startled, screamed and covered her face with both hands.

Feeling a bit of that sensation from below, and remembering the pain from before, she reflexively cried out.

“It’s too tight down there to properly insert. Don’t exaggerate.”

It was true.

There wasn’t enough lubrication inside and out, making it tight.

I thought about using saliva as a lubricant by having her suck it, but today is the first day…

She needs to be trained by me for a long time, so I can’t do that yet.

I grabbed the shaft with one hand and tried to force it into Sehwa’s pussy.

Feeling the male member gradually entering her, Sehwa anxiously spoke.

“Wait… just a moment… it doesn’t seem like it will fit… Jihyuk…!”

“It’s going in.”

“It hurts…! Pull it out… it hurts…”

It wasn’t even halfway in, and she was already exaggerating.

I firmly pressed her thighs, causing her pussy to open like a clam.

Then, the half-inserted cock went in a bit deeper.

After that, I pressed down hard on her lower abdomen and pushed the cock in near the root.

Sehwa’s back arched like a bow, and a scream escaped her lips.

“Ahhh!”

Perhaps due to Sehwa’s struggling movements?

I felt an immense pressure tightening around my cock.

I began thrusting in earnest.

After one thrust, the lubrication inside her coated my cock, making the back-and-forth movement smooth.

“Ahhh…! Hhh…!”

Tears streamed from Sehwa’s eyes, mixing with her moans.

Her voice, initially filled with pain, began to show pleasure as I gradually increased the speed.

“Haaang…!”

She couldn’t keep her hands still now.

Every time my cock plunged to the root, her groin and buttocks slapped against me, and Sehwa, with her head buried in the pillow, shook her head wildly at the sound.

She even tried to grab the bed’s headboard to shake it.

It seemed she wanted to focus her nerves on the creaking sound, but the high-quality bed frame perfectly blocked her efforts.

Her tightly closed eyes, bitten lower lip, and scrunched-up face were incredibly cute.

Every time my cock, filling her insides, scraped against her walls, her entire body shuddered.

The guilt had long been overshadowed by pleasure.

As Sehwa’s excitement peaked, she let out a long moan mixed with a sigh.

“Hhhh…♡”

Thrust! Thrust! Thrust!

Grabbing her chest and thrusting like a beast, the tone of her moans grew higher.

After about ten minutes, Sehwa’s body was already limp, accepting my male member.

Her body twitched with every thrust, looking incredibly lewd.

Her body, covered in cold sweat, looked as if it had been polished smooth.

Her rising hips in that state were mesmerizing.

A chaste deer in front of her boyfriend, but a bitch spreading her legs in desire before me.

What a perfect position.

The buzzing sound of the device was annoying, but I focused silently on exploring Sehwa’s insides.

After a while,

“Hiyyaaah!”

Sehwa let out a seductive moan, her hips bouncing two or three times.

As she reached her climax, her pelvis almost at its peak, I also felt the urge to cum.

I pressed her stomach with my hand, thrusting a few more times before pulling out my cock.

“Haa… Haaang…”

Sehwa, letting out a tired moan mixed with pleasure, slowly opened her eyes in confusion.

She tilted her head, seeing me shaking my cock in front of her abdomen with one hand on the bed, and then jumped in surprise as a stream of semen shot out from the tip.

Gulp!

The forcefully ejected semen sprayed over Sehwa’s chest, reaching her left collarbone.

Feeling the warm sensation on her neck, Sehwa let out a few exclamations of surprise.

Feeling all the strength drain from my body, I let out a sigh.

“Phew…”

Looking up at Sehwa, she was covering her face in embarrassment.

After pausing to let the last remnants of orgasm fade, I grabbed some tissues from the bedside table and began wiping the semen off Sehwa’s body.

Sehwa, seeing me do this, hesitated.

“Down there… it hurts…”

“I’ll wipe it and massage your legs.”

“Okay…”

“Did it feel good?”

“A little…”

“A little?”

“Ah, no… a lot.”

I chuckled at her answer, then slowly hardened my expression.

She tried to provoke jealousy earlier with all those cute antics, so I should repay her.

“Don’t give your body to Yoo Seunghyun carelessly from now on. Not until I allow it.”

“What…? But… Mmph!”

Sehwa couldn’t finish her sentence.

I kissed her lips.

It was a gentle kiss, as if treating a loved one.

After gently brushing her teeth with my tongue for a while, I pulled away.

“Even simple kisses are forbidden, as are hugs and holding hands. Refuse any excuse. Understood?”

Sehwa, looking at my lips with longing, pouted.

“Jihyuk… my legs hurt… my stomach hurts… and…”

“Answer first.”

Sehwa looked at my face.

Perhaps having adapted to my rapid emotional changes, sometimes calm and other times like a high tide, she nodded with a guilty expression.

Hearing her answer, I smiled and got off the bed, placing her legs on my thighs.

I began gently massaging the inside of her thighs with both hands.

As I massaged her thighs and gently stroked her lower abdomen where her uterus was, Sehwa smiled faintly, enjoying it.

It seemed my touch was superior to Yoo Seunghyun’s, so I couldn’t help but chuckle.

**

[Hundreds of unidentified monsters that appeared in Mexico early yesterday morning were all eliminated by a joint attack from the cartel and the Mexican military. Meanwhile, the monsters that appeared in the Middle East…]

The next day, the world was flooded with news about the monsters that had simultaneously appeared in North America, Oceania, and the Middle East early that morning.

This was the work of me and Marcella.

By releasing weaker monsters, we made sure the world understood that Korea wasn’t the only danger zone.

‘Dr. Cash’s statements need to gain traction. We need support from governments worldwide.’

Thinking that, I looked at the item in my hand.

It was an accessory shaped like the pouches Beast Slayers wear on their waists. The doctor wanted to make it so various grenades could be stored and used as consumables.

It was equipment that enhanced practicality without compromising the existing aesthetic.

I looked at the doctor soldering beside me.

“Doctor, how are we going to get Leona to wear this? Does she drop it when she transforms?”

“She can’t do that. She needs to fight monsters immediately after transforming. We’ll make the equipment in a polymer form and absorb it into the device. It will automatically equip when she transforms.”

“Is… that possible?”

“It’s possible. A bit difficult, though.”

I can do it easily.

Marcella and I far surpass your technological capabilities.

But I won’t tell you. I’ll pretend to gain inspiration while learning theory and practice from you.

“The nerd must be anxious about skipping school, huh?”

The doctor’s silly joke.

I awkwardly smiled.

“I prefer being here now over school.”

Currently, I had been called by Dr. Cash after lunch.

I left Sehwa to live her normal life.

It was because of her request—no, command—to help make various equipment.

“Good posture. Want to see this?”

The doctor pushed her chair and showed me her laptop screen.

On it was a 3D model of the Beast Slayer suit Leona wears.

Everything from the clothes to the weapons and accessories.

“This is… Leona’s suit, right?”

“Right. My husband designed it. Isn’t it childish?”

“Childish? I love it to death.”

“Tsk tsk… You’re hopeless too. My husband would be happy if we went to heaven. We’d get along well.”

“Don’t say such things… But why are you showing me this?”

“I’m thinking of attaching that item you’re holding to the left waist where the scabbard is. What do you think?”

“I think it’s good. And Leona never uses the scabbard in battle, right? It just gets in the way… Let’s remove the scabbard. Since Leona wields her sword with her right hand, she can use her left hand to throw flash grenades, EMPs, or small cluster bombs. That seems right.”

The doctor hummed and nodded.

“My husband might be a bit sad, but… since we need to protect the Earth, he’ll understand. What about button-launching?”

“For EMP grenades, that’s fine, but for other grenades, throwing by hand would be more accurate. Much better than aiming with the waist. Also, in case Leona’s hands and feet are bound, how about adding a voice recognition system?”

The doctor agreed, saying it was a good idea.

“That’s a good thought.”

Yes, a good thought.

I’ll have to change the suit to my taste later.

As the Beast Slayer by the Demon King’s side, it’s only right to modify the functions and design to match.

After finishing my thoughts, I pointed at the TV.

“Can’t we do anything about those monsters?”

I meant my subordinates.

The doctor let out a deep sigh.

“I was a bit surprised too. I was confident I could detect Evil Energy worldwide. But there was no sign, and they just suddenly appeared. I can’t figure out where they came from.”

Did I just add to her worries by trying to help?

I’ll just openly open portals from now on.

“Those monsters have put governments on edge. I’ll contact them and build countermeasures, so don’t interfere. Just focus on work. Remodel the pouch and show it to me.”

“Understood.”

Originally, the doctor would make the equipment alone.

But entrusting me with the remodeling meant she had built a lot of trust in me.

Good, keep trusting me like that. I’ll definitely meet your expectations.

Trust me and hand over the device.

To be continued―――――――――――――――――――――

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