Chapter 23
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Translator: penny
Chapter: 23
Chapter Title: Taming the Academy's Problem Child
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"...Hello."
I greeted him while glaring at the man with wary eyes.
I'd planned to deck him the moment I walked in and get things started on the right foot.
But strangely, the instant I stepped inside the house and came face-to-face with him, that thought vanished like it had been washed away.
It evaporated in an instant, to an almost unnatural degree.
'He looks... surprisingly fine.'
He was an impressive man with a large build, honed by exercise.
His massive frame was perfectly complemented by sleek, agile muscles.
'Similar physical enhancement ability to my sister...?'
He had a friendly demeanor that eased my guard just enough.
His kind features and trustworthy voice suited him perfectly.
Overall, he gave off a reliable first impression.
"Ah, hello. I've heard a lot about you from Yu-jin."
"Ah, yeah." I gave a half-hearted reply as I sized him up.
I couldn't let myself be fooled. He might be using that handsome face to deceive my sister.
"Haha, no need to be so on guard. I'm not some weirdo."
"Not a weirdo," he says. If that doesn't scream weirdo, I don't know what does.
I kept my defenses up and fired a question at him.
"Hmm, so how exactly did you meet my sister?"
"Ah, well..."
The man began recounting his story.
He'd been mugged by some villain of unknown identity and left naked in a place he didn't recognize.
In that situation, the one who'd saved him was none other than my sister Na-eun.
'Na-eun unnie really is kind to everyone.'
"Haha, for real. If it weren't for Na-eun, I would've been in deep trouble."
"Na-eun...?"
I blurted out the question brewing inside me at how casually and familiarly he called her name.
"If I may ask, what exactly is your relationship with my sister?"
"...When I was suddenly isolated in an unfamiliar place, she was the one who saved me." He spoke wistfully, reminiscing about the past.
"Naturally, I developed feelings for her."
"Not long ago, Na-eun broke things off with her boyfriend and started dating me."
"I'll do anything to make her happy."
There was a ring of truth in the way he praised her.
I could strongly relate when he talked about her sense of responsibility and her diligent, kind nature.
"S-Still, isn't moving in together a bit too fast...?"
"Ah, don't worry. It's just temporary until I find a place."
After chatting with him, I started to think he might actually be a decent guy.
...More than I'd predicted, anyway. I still wasn't sure if he was truly trustworthy.
All of this could just be an act, right?
"My sister said you're incredibly skilled, Teacher. Is that true?"
'He could be all talk, an empty shell of a man.'
You can fake personality, but skill is harder to hide.
"Hm, it's a bit embarrassing to say it myself, but yes. I should be able to handle most problems."
"Hmmm. In that case, could you maybe solve my problem too?"
I watched him listen intently to my words with a serious expression and bumped my evaluation of him up a notch.
'He seems like the serious type when it comes to work...'
"Mind if I take your hand for a moment?"
"My hand?" At my guarded question, he smiled warmly and replied.
"Yes. My Supernatural Ability analyzes the state of anyone I touch. I use that data to suggest tailored solutions."
"I've never heard of that..."
"Haha, of course not. It's an extremely rare ability."
He smiled as if my excessive caution was amusing.
I cautiously extended my hand, and he placed his on top.
...He wasn't some pervert trying to cop a feel, was he?
It could be a lame excuse to touch my body.
Starting with my hand... then gradually, like a snake...!
The fear flickering in my mind made me flinch when our hands touched.
But my worries proved unfounded in an instant.
"All done."
"Pardon?"
"Awakener Han Yu-jin, age 19, Supernatural Ability potential A+, awakened ability is Body Transformation... That right?"
"Y-Yeah. Spot on!"
"I heard you're an Academy student, but 19 years old?"
"Yeah, I... skipped grades and graduated high school early..."
"Impressive. It's tough enough entering the Academy right after high school graduation, but skipping grades and becoming a cadet at your age? Truly outstanding."
"What's the point? My potential's high, but right now I'm just a half-baked user who can't even control her ability properly..."
To my pessimistic lament, the man said,
"Miss Yu-jin, you're a flower on the verge of blooming."
"Huh?"
"Do you know what's most important for Body Transformation users—transformation-type ability wielders?"
"N-No, not really..."
"A solid body image."
He stated it firmly, with conviction.
"Body... image...?"
"Yes. For transformation-type users, the key is how well you perceive your original body."
He continued his explanation with confident assurance. Before I knew it, I was hanging on his every word.
"The more precisely you understand your own body, the better you can project mana and transform it freely."
"...But I can't transfer mana to the transformed parts."
"Haha. That's just a side effect of your exceptional talent, Miss Yu-jin."
"A side effect...?"
"Your mana control matured before your body finished growing, so they don't mesh."
"You mastered mana control at a very young age, didn't you?"
Chills ran down my spine. How did he know?
"Y-Yes... that's right...!"
"Your body has grown, but your mana circuits are still the old ones, so efficiency suffers. It's like trying to boil ramen with a single matchstick."
"...No one ever told me that..." The mocking words that had tormented me before flashed through my mind.
'Fake genius,' 'Promising prospect my ass,' 'Scholarship scammer.'
"Transformation-types are special," he refuted all that mockery in one breath.
"Special...?" At my hopeful question, he met my eyes directly and answered.
"Yes, and that makes them rare."
"There's not much research on them, and without the right mentor, talent like yours can easily go to waste."
"Mentor..."
Suddenly, his back seemed broader. The confidence in his gaze toward me felt like that of a true teacher for his student.
I felt ashamed for ever doubting him, even briefly.
'Get it together... I haven't even asked his name yet. What is it...?'
"I'm Jung Jin-hyuk."
"Jin-hyuk... Can I call you Teacher Jin-hyuk?"
"Of course."
Teacher Jin-hyuk smiled brightly and took my hand.
The warmth from his large hand felt like it embodied his burning passion.
A conviction welled up in my chest: 'I can trust this man.'
I'd follow any order he gave.
And so began the strange cohabitation of me, Teacher, and my sister.
"Teacher... is this really the right way?"
"Absolutely. We start with basic body transformation practice."
"Wh-What I want to practice is stuff like instantly enlarging my fist or hardening my legs! Things like that!"
"Miss Yu-jin." His tone dropped, sounding almost threatening.
"Ugh, it's not that I doubt you, Teacher, but this is just too embarrassing."
"We have to start with [Basic Body Manipulation]. How can you run before you learn to walk?"
"D-Do we have to do it this way?"
"Hm, I think I already explained that last time."
With Teacher glaring at me fiercely and my sister shooting me a look, I had no choice but to attempt the [Basic Body Manipulation] he taught me.
My normally average-sized breasts swelled up insanely large, completely unlike before.
So much that I couldn't even button my shirt.
'Heavy... How am I supposed to live with tits this big...?'
"Excellent. You've transformed them beautifully." Even with Teacher's praise, my mind was filled with shame.
'Ugh, this is too embarrassing...'
"Ugh... Enlarging my breasts... Is this really training?"
"It's simply the most efficient way to build an image of [Expansion]."
"Why... why breasts of all things!" At my outburst, Teacher chuckled and explained.
"What part of your body has expanded most recently in your life, Miss Yu-jin? I'm just guiding you as a pure educator."
"Don't you want to show everyone a stunningly transformed you in three months?"
"...Well, going to school like this would shock them, sure."
"I don't want to shock people with this—I want to get stronger!"
I couldn't help snapping at his teasing.
"Don't twist my words, Miss Yu-jin. This is all part of getting stronger."
"Then let's move on to the next step already."
This was the most awkward part of the [Basic Body Manipulation Training].
"...Please make it quick."
Teacher said I had to repeat this training until I felt the same sensations in the expanded organ as before.
...But did he really need to check like this?
The lesson involved Teacher kneading my breasts while I tried to feel the familiar sensations.
I knew lessons with Teacher weren't sexual no matter what, but it was still embarrassing.
Like showing your butt at the doctor's for a shot—necessary, but mortifying.
"Hm, even bouncier than yesterday. Have you been practicing?"
"Hah... You said you liked them softer and squishier. I tried making them mochi-like. How is it?"
"Seriously, this addictive texture sucking at my hands..."
"...You can sexually harass me as much as you want; I won't do anything about it."
Obviously, [Teacher's sexual harassment is praise], but I still flinched every time.
If anyone else said it, it'd be straight-up reportable.
"How's the sensation? Can you feel it a bit now?"
"Definitely more sensitive than yesterday. Newly expanded parts used to feel numb..."
After kneading my breasts for a few minutes, Teacher started teasing my perked-up nipples, checking my sensitivity.
"Hmmm...♥ Now, even in the expanded parts, I can feel all the sensations fully...♥ Much clearer than before..."
Adjusting the nerves was the hardest part. The goal was to match the sensitivity of my original breasts.
As he fiddled with my nipples, I endured the rising pleasure and let him verify the sensations.
"Ah...♥ I'm gonna cum...♥ Cumming...♥"
"Already? You've really been diligent with your homework, Miss Yu-jin."
"Yes...♥ Now with just my nipples...♥ I can cum right away...♥"
"Remember the feeling of cumming with your breasts well?" Teacher asked, holding my trembling body firmly as I climaxed.
"I'm trying hard, but it's still a bit tough."
"Mm, let's end today's lesson here," he said, grabbing my sister's wrist and heading to their room.
He'd gotten aroused watching my display, but he wasn't directing lust at me, so no hard feelings.
"Do your homework diligently, Miss Yu-jin."
"Sure~" I replied casually, seeing him off.
Not that he needed seeing off—their room was right next door. Just going to ravage my sister?
As the door closed, the sounds of Teacher unleashing his desires on her body filtered through. My sister's high-pitched moans carried clearly over the wall.
"Gonna be noisy again tonight..."
Doubtful if I could focus with the racket, but homework couldn't be skipped.
"Today's is masochistic sensitivity development and... sensory transformation...?"
Tough homework again, but it was the curriculum Teacher had carefully designed after much thought—I couldn't fall behind.
"Let's do this...! Han Yu-jin...!"
She resolved to experience a 'masochistic climax' no matter what today.