The Education Begins
In the dimly lit bedroom, the lesson had begun. I held Sehwa in my arms, listening to her excuses—or rather, her clumsy attempt to stir my jealousy.
“My boyfriend asked for a hug… so I had to give him one, right? What else could I do?”
“……”
When I remained silent, Sehwa turned her head, trying to read my expression. “Are you asleep?”
“No. I’m listening.”
“The hug only lasted a second. But then…”
“But then?”
“Seunghyeon suddenly kissed me.”
“And you let him?”
“I couldn’t exactly say no. He’s my boyfriend… right? Ah!”
Sehwa sucked in a sharp breath. My hand had slipped beneath her T-shirt and was now kneading her over her bra. Startled by the sudden touch, she twisted in my arms, but the moment my fingertips traced the valley between her breasts, she froze.
“Wearing something plain again today. I can tell just by touch.”
“……”
Embarrassed, Sehwa tried to push my hand away. Next time I see her, the design of her underwear will have changed. I unhooked her bra with ease. She shrugged her shoulders, letting the straps slide down on their own.
I had been about to tease her nipples and warm her up, but I stopped. No foreplay tonight. I would make her feel pleasure while I took her.
I roughly flipped her onto her back beneath me. Sehwa blinked in surprise at the sudden movement.
“Lift your hips.”
“……”
“Now.”
My tone was far gentler than before. Reassured, Sehwa silently raised her pelvis. I unbuttoned her jeans and slid them down with both hands, tossing them beside the bed.
“Are you taking off the T-shirt, or should I?”
Sehwa swallowed. I could hear her heartbeat clearly in the quiet room. She was deeply flustered. Last time, excitement had made her head spin, but now everything felt painfully sharp and therefore terrifying. Yet her eyes still shimmered with an unreadable anticipation.
She felt guilty about revealing a body she had never shown her boyfriend, but the desire to receive pleasure from me outweighed that guilt. The shame born of betrayal had already been twisted into craving and ecstasy. In the end, she raised both arms—an invitation to undress her.
I smirked and pulled her T-shirt off, tossing it atop the jeans. In the darkness, Sehwa’s pale naked body was faintly visible. The straight line of her navel between her slender waist, the jutting hipbones—both were intensely sensual. So were her breasts, like blooming flower buds that would fit perfectly in my palms. Even the way she shyly covered them with her arms and the way her loosened hair spilled across the pillow was beautiful. The sight of her glancing at me while turning her head slightly, as if to say “don’t stare so openly,” was lovely.
You’re mine. Forever.
I stripped off my own clothes. The body I had built by lying about exercising every day looked just right—moderately firm pectorals, sharply defined abs. Sehwa’s face flushed the moment her eyes, adjusted to the dark, took in my figure. When she saw the bulge straining against my briefs, her gaze sparkled with curiosity.
Her breathing grew rough and quick. Proof that she was already aroused. I hadn’t even touched her yet and she was already like this. It was almost ridiculous.
“Take them off yourself.”
At my low voice, Sehwa carefully moved the hand that had been covering her chest toward my briefs. She tugged the waistband down just a little. The fully engorged tip emerged, and her throat bobbed visibly. Seeing it in person seemed to stir complicated feelings in her. After all, last time she had buried her face completely in the pillow…
Eventually she pulled my briefs down to my thighs. My thick, throbbing length stood fully exposed, twitching faintly before her eyes. The male organ that had once plunged inside her and torn through her maidenhead. Was it female instinct? Sehwa’s legs parted slightly.
I didn’t miss the moment. I spread her legs wide.
“Ah… I’m not ready yet… At least first…”
She seemed about to ask for foreplay. I shook my head silently and pushed her panties aside. When I pressed the tip between her plump folds, Sehwa flinched. Keeping that position, I slowly rubbed myself up and down.
Sehwa stammered, “Gently… please be gentle… then… Ah!”
She cried out in surprise and covered her face with both hands. She had felt that familiar sensation from below and, remembering the pain from last time, the sound had escaped reflexively.
“You’re too tight for me to get it in properly. Stop exaggerating.”
It was true. There wasn’t enough wetness inside or out, making entry difficult. I had considered using her mouth for lubrication, but this was only day one. She still had a long education ahead; I couldn’t rush things already.
Holding the shaft with one hand, I tried to push inside her. Sensing the male organ slowly entering her, Sehwa spoke in a panicked voice.
“Wait… just a second… I don’t think it’ll fit… Jihyeok…!”
“It’s going in.”
“It hurts…! Take it out… it hurts…”
She was complaining when I wasn’t even halfway in. I pressed firmly on her thighs, forcing her folds open like a clam. The half-buried length sank a little deeper. Then I pressed down on her lower abdomen and drove myself all the way to the root. Sehwa’s back arched like a bow and a scream tore from her throat.
“Aaaah!”
Perhaps because of her struggling, an intense pressure clamped down on me. I began thrusting in earnest. Once I pulled out, her fluids coated me enough that movement became smooth.
“Nngh…! Hngh…!”
Tears spilled from Sehwa’s eyes and mixed with her moans. At first her voice had been filled with pain, but as I gradually increased the pace, pleasure overtook it in less than a minute.
“Haah…!”
She couldn’t keep her hands still. Every time I bottomed out, our bodies slapped together wetly. With her face buried in the pillow, Sehwa shook her head violently at each sound. She even reached for the headboard, perhaps hoping the creaking would distract her, but the luxury bed’s frame perfectly thwarted her efforts.
The sight of her eyes squeezed shut, lower lip bitten, face scrunched up, was adorable. Every time my length scraped her inner walls, her entire body trembled. The guilt had long since been buried beneath pleasure. As her arousal peaked, Sehwa let out a long, breathy moan.
“Hnnng…♡”
Thrust after thrust, I gripped her breasts and pounded into her like an animal. Her moans grew higher and higher. After about ten minutes, Sehwa’s body had gone completely limp, accepting my thrusts. The way she jolted each time I drove upward was obscenely erotic. A thin sheen of sweat made her skin look even smoother. The way her hips kept rising was mesmerizing.
A righteous deer preserving her chastity in front of her boyfriend, yet spreading her legs in surrender to desire before me. What a perfect state.
The buzzing of the Device was annoying, but I focused silently on exploring her depths.
Before long—
“Hyaaaah!”
Sehwa cried out in a sweet, broken voice and bucked her hips two or three times. Just as she reached her climax and her pelvis lifted to its highest point, I felt my own release approaching. I pressed down on her stomach with one hand, thrust a few more times, then pulled out.
“Haa… haah…”
Sehwa, still dazed from exhaustion and pleasure, slowly opened her eyes in confusion. She tilted her head at the sight of me propped on one arm, stroking myself above her abdomen—then flinched when thick, white fluid erupted from the tip and splattered across her chest and left collarbone.
Perhaps because she felt the warm sensation on her neck, Sehwa let out several small gasps of surprise. I exhaled deeply as the strength drained from my body.
“Hoo…”
When I looked down at her, she was covering her face in embarrassment. After letting the last waves of orgasm fade, I grabbed tissues from the nightstand and began wiping the evidence from her skin. Sehwa watched me and mumbled.
“Down there… it hurts…”
“I’ll finish cleaning and massage your legs.”
“Okay…”
“Did it feel good?”
“A little…”
“A little?”
“Ah, no… a lot.”
At her answer I chuckled, then slowly hardened my expression. She had pulled all those cute stunts earlier to make me jealous. It was time to repay her.
“From now on, don’t offer your body to Yu Seunghyeon so carelessly. Not until I allow it.”
“What…? But… mmph!”
Sehwa couldn’t finish. I had sealed her lips with a kiss—gentle, as if cherishing a lover. After tracing her teeth slowly with my tongue for a long while, I pulled back.
“Even a simple kiss is forbidden. Hugs too. Holding hands. Reject him no matter what excuse he gives. Understood?”
Sehwa gazed longingly at my lips, then whined. “Jihyeok… my legs hurt… my stomach too… and…”
“Answer first.”
She looked at my face. She seemed to have adapted to my sudden shifts in mood—sometimes calm, sometimes a towering wave—and nodded with a guilty expression. I smiled at her answer, then moved down the bed and lifted her legs onto my thighs. I began gently kneading the insides of her thighs with both hands. While massaging near her thighs, I also stroked her lower abdomen where her womb lay. Sehwa smiled faintly in pleasure.
Seeing that my touch pleased her more than Yu Seunghyeon’s ever could, I couldn’t help but laugh quietly.
[Last night, hundreds of unidentified monsters that appeared in Mexico at dawn were completely 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 appeared simultaneously in North America, Oceania, and the Middle East at dawn. This was Marcela’s and my work. By releasing weaker specimens, we had perfectly imprinted upon the entire world that Korea was not the only danger zone.
Dr. Cash’s words need to carry weight. We need support from governments around the world.
Thinking this, I looked at the object in my hand. It resembled the pouch Beast Slayers wore at their waists—an accessory the Doctor intended to turn into a consumable holder for various grenades. A piece of equipment that added practicality without ruining the original aesthetic. I glanced at the Doctor, who was soldering beside me.
“Doctor, how are you planning to equip Leona with this? Will you drop it to her after she transforms?”
“She has to go straight into fighting monsters after transforming. That won’t work. I’ll make the equipment in polymer form and have the Device absorb it. It’ll equip automatically upon transformation.”
“Th-that’s possible?”
“It is. A bit difficult, but possible.”
I could do it easily. Marcela’s and my technological prowess far surpasses yours. But I won’t tell you. I’ll learn the theory and practice from you while pretending I came up with it myself.
“The model student must be anxious about skipping school.”
The Doctor’s pointless joke made me smile awkwardly.
“This place is better than school anyway.”
Currently, I had been summoned by Dr. Cash after lunch. I had left Sehwa to live her ordinary life. The Doctor had asked—rather, ordered—me to help her produce various pieces of equipment.
“Good attitude. Want to take a look at this?”
The Doctor kicked her chair over and showed me her laptop screen. Displayed in 3D was Leona’s Beast Slayer suit—clothes, weapons, accessories, everything.
“This is… Leona’s suit.”
“Correct. My husband designed it. Doesn’t it look childish?”
“Childish? I love it to death.”
“Tsk tsk… You’re hopeless too. When you die and go to heaven, my husband will be delighted. You two would get along.”
“What are you even saying… But why are you showing me this?”
“I’m planning to attach that thing you’re holding to the left side of her waist where the scabbard is. What do you think?”
“I think it’s a good idea. Besides, Leona has never actually sheathed her sword during combat, has she? It only gets in the way when she moves… Why not remove the scabbard entirely? Since she wields the sword with her right hand, it makes sense to have flashbangs, EMPs, or small cluster grenades in her left.”
The Doctor hummed thoughtfully and nodded.
“My husband will be a little sad, but… we have to protect the Earth, so he’ll understand. What about button-activated launch?”
“EMP grenades would be fine that way, but for the others, throwing them by hand would be more accurate. Much better than aiming with your waist. Also, in case Leona’s hands and feet get bound, how about adding a voice-recognition system?”
The Doctor agreed. “Good idea.”
Yes, a good idea. I’ll have to redesign the suit to my liking later too. Since she’s a Beast Slayer who must stay by the Demon King’s side, it’s only fitting to adjust both function and design accordingly.
Finished with my thoughts, I pointed at the TV.
“Those monsters… is there nothing we can do about them?”
I meant my subordinates. The Doctor let out a long sigh.
“I was surprised too. I was confident I could detect Evelion Energy anywhere in the world. But there was no sign at all—they just appeared out of nowhere. I can’t even begin to guess where they came from.”
I had been thinking of helping a little, but it seemed I had only added to her worries. From now on, when opening portals, I would do so openly.
“For now, governments around the world will be on high alert because of those monsters. I’ll handle establishing countermeasures while making contact. Don’t try to get involved. Let’s just work. Remodel the pouch and show it to me.”
“Understood.”
Originally, the Doctor made the equipment alone. The fact that she entrusted the remodeling to me was proof that I had earned a great deal of trust.
Good. Keep trusting me like this. I’ll live up to every single one of your expectations.
Believing in me like that, she even entrusted me with the Device.