Chapter 100
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Translator: Ace
Chapter: 100
Chapter Title: Direct Infusion
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A method I never would have imagined back when I was in that other world suddenly flashed through my mind.
The usual way to acclimate the body to demonic energy was to pour it straight into the head until it settled in properly—that's what I knew.
But considering the core principle was to firmly implant demonic energy in the dantian, guiding it there myself seemed like a solid approach, especially given Seo-yoon's current state.
From what she'd told me during our practice sessions up to today, she could move small amounts of demonic energy but still couldn't hold it inside her body.
More precisely, she didn't grasp the sensation of containing it.
She wanted to store it in her dantian but had no idea where exactly that was, and the feeling of it settling in just didn't click.
So what if I inserted demonic energy directly into her dantian? Wouldn't that make it way easier for her to learn?
It'd let her pinpoint the dantian's location and get a real feel for the sensation.
The reason I hadn't thought of this before was that injecting demonic energy into someone else's body wasn't very efficient. But what if I generated it from inside her body instead of pushing it in from outside?
Especially since, unlike a man's body, a woman's has a convenient opening right near the dantian.
The idea hit me, and it seemed worth trying right away, so I got up.
"Huh? Oppa, where are you going?"
Yejin, who had been settling in for bed next to me with half-closed eyes, looked up and asked.
"Thought of an experiment to try. I'll be back soon, so go ahead and sleep without waiting."
"Yaaawn... Okay, then I'll crash first."
After watching her pull the blanket over herself and close her eyes just like I said, I headed quickly to Seo-yoon's room and gave a light knock.
"Yes, coming!"
I wondered if she'd be asleep at this late hour, but her voice came from inside, followed by footsteps approaching the door.
"Ah, Master... What brings you here at this hour...?"
"Got something to discuss with you. Mind if I come in?"
I brushed past Seo-yoon, who looked utterly shocked—like she hadn't expected it to be me—and stepped inside.
"What, you've been practicing this whole time?"
The demonic energy wafting through the room and the magic stones scattered on the floor told me she hadn't slept a wink; she'd been working on controlling it.
"Yes... I want to use black magic as soon as possible... Even just a little faster."
Her voice was timid, but it carried a clear burning desire to grow stronger quickly.
If that's the case, as her master, I ought to help make that wish come true.
"You've been grinding away because you thought the method I mentioned today wasn't something you could use yet, right?"
"Well, yeah... If I can get a handle on controlling demonic energy, maybe I could use the technique you described."
She wasn't wrong. One reason I hadn't assigned it to her was her control was still too shaky.
Seeing her cut back on sleep to improve because she understood that? Pretty commendable.
"Good. I actually came up with a fresh idea to boost your skills."
"A new idea? What is it?"
"You still can't store demonic energy in your dantian, right?"
She nodded at my question.
"Let's start there. What I'm going to do today is show you exactly where your dantian is—by filling it with demonic energy—and let you feel what it's like to hold it."
"But I remember you saying injecting it through the skin is too inefficient to bother with..."
"Spot on, you remember right. It's way too inefficient through the skin. But after thinking it over, I realized there's a better way. That's why I'm here."
Her eyes lit up at the words "new way"—the gleam of someone who'd just spotted fresh hope.
"What is it?"
"Simple: Get as close as possible to your dantian and inject the demonic energy right there."
Seo-yoon's face twisted in confusion, like she wasn't quite following.
"What do you mean by 'get close'? I'm not getting it."
"Exactly what it sounds like: Stick my hand—or whatever—right up to your dantian inside you and pump in the demonic energy."
Her expression darkened instantly. But then, like she'd made up her mind, she steeled herself and suddenly hiked up her clothes to bare her stomach.
"Got it, Master. I'm ready."
What the hell is she doing?
"Whoa, what are you—"
"Huh? Weren't you going to... cut a hole in me and shove your hand in?"
No, what the—?
"Do you really think I'd do something like that? Why would I bother making a wound?"
"Huh? Then what did you—"
"No need to drill any holes in you."
I stepped closer as I spoke, pointing right at her pussy with my finger.
"I'm going to insert the demonic energy through here."
She jolted back, eyes wide with shock.
"Th-there...?"
"Yeah, right where you're thinking. Straight into your pussy, flowing the demonic energy directly to your dantian."
It had occurred to me after hearing about Yejin's experience that the dantian and womb were pretty close together.
So why not slide it in through her pussy and deliver it from the inside?
"No clue if it'll work perfectly—it's my first time trying this. But it's worth a shot."
As I said that, I started stripping off my clothes.
Seo-yoon slapped her hands over her face and turned her back to me.
"D-Do we really have to do it this way?"
Her voice trembled through her fingers.
"No choice, right? To ramp up your skills fast, we gotta try everything. Be patient—teaching black magic to someone else is new for me too."
With that, I ditched my underwear too, fully naked now.
"So get ready. Unless you don't want to?"
"I-I mean..."
"Don't you need revenge? And as fast as possible? If that bitch Joo Hye-ri's living it up happy in this zombie apocalypse, doesn't that just boil your blood?"
With training turning into sex under the guise of "lessons," and her seeming hesitant, I threw out Joo Hye-ri's name to stoke her thirst for vengeance.
It worked like a charm—Seo-yoon's whole vibe flipped 180 degrees.
"...You're right. I have to get revenge on Joo Hye-ri."
She dropped her hands from her face, turned to face me, and our eyes met. Hers burned with iron resolve: she'd do anything for payback.
"Alright, let's get started."
"Yes, Master."
She nodded and slowly began undressing. She'd been wearing pink pajamas for bedtime after practice, no pattern. As she undid the buttons, glimpses of her soft skin appeared alongside the scars dotted here and there.
Once she'd stripped down to nothing, she covered her scars with her hands rather than her breasts or pussy—like they embarrassed her more.
Especially the one below her navel.
I approached, took her hands covering the scars, and pulled them away.
"Like I said before, scars like these don't faze me. Others might call them ugly, but I never will—so no need to be ashamed."
"R-Really?"
Words alone wouldn't cut it, so I decided to show her with actions.
First, I swept her bangs aside to expose the scar on her forehead, then leaned in slow and pressed my lips to hers.
She looked startled at first, but once our lips met, she didn't push me away—instead, she wrapped her arms around me and closed her eyes.
Sure, anyone else might wince at those scars on reflex, but the fact they didn't move me was probably a blessing.
Even as her master, if I'd shown disgust at her scars, it would've crushed her deep down.
But I never let it show, and that must've eased her mind at least a bit.
I gave her a light kiss while slipping my hand between her legs.
Not to satisfy my own lust—this was purely to boost her skills.
"Mm!"
Her eyes snapped open as my hand touched her pussy.
Ignoring her gaze, I used my fingers on her pussy lips to part them gently, rubbing the entrance softly.
"Hah... M-Master..."
She pulled her lips from mine and tried to lean back, but I drew her close to keep her there.
Her reaction screamed total newbie.
"Wait, are you a virgin?"
She gave a small nod, saying nothing.
"Even masturbated?"
"I... have tried it. But no one's ever touched me there before..."
"Guess we'll fix that today."
With that, I slowly slid my finger into her pussy.
"Haah!"
"Don't tense up—just feel it going in. It'll help."
"Y-Yes... Master!"
Virgin territory meant I needed to loosen her up properly, so I took my time.
"Hah... haa... ungh..."
As I slowly thrust my finger inside, scraping the walls, moans started slipping from her lips.
Doesn't seem like she's numb to it or anything.
Time to try what I came here for?
The whole point was to inject demonic energy straight into her dantian.
Can't lose sight of the goal.
This was new for me too, so I carefully drew demonic energy into my finger and let it flow toward her womb.
"M-Master!"
"Yeah, I'm sending demonic energy in now—stay still."
Definitely more efficient from inside than shoving it through the skin.
Looking at her face, she was feeling the demonic energy enter her and trying to control it herself—interfering a bit.
Obviously, my power dominated, so no risk of losing control, but her even attempting it was a good sign.
Then, as it passed her womb toward where her dantian should be, she suddenly gasped and hugged me tight.
"Whoa, what's up?"
"Haa, haa... It felt like an electric shock deep inside... I couldn't help it..."
Wondering if I'd directly stimulated her dantian, I sent more demonic energy—and her body twitched hard as she squeezed me tighter.
Love juices gushed over my finger inside her pussy.
Ah, so stimulating the dantian like that makes women react this way?
"Feel where my demonic energy is hitting right now? That's your dantian. I'll keep stimulating it, so try to hold onto the energy flowing in. Got it?"
"Haa, haa... Y-Yes... I'll... try hard..."
She'd clearly cum from that last jolt, mouth agape, tongue out, panting as she answered.
Alright, now let's switch from finger to cock.
Unlike my finger, my dick could reach way deeper, so it'd be even more efficient than before.
Her pussy seemed plenty wet from the dantian stim, so no issues sliding in—I hooked my hands under her armpits, lifted her, aligned my tip with her pussy, and thrust down.
"Hngh!"
She squeezed her eyes shut in pain as my cock entered her pussy.
Had to hurt with her hymen tearing.
But even that pain faded as I channeled demonic energy through my cock to her womb, stimulating her dantian—her body jolted, and even more juices flooded out.
As she climaxed again, too overwhelmed to even cry out, I felt a portion of my demonic energy flow into her dantian.
Whether from her conscious effort to control it mid-orgasm or some instinct, one thing was clear: it was working.