Checking Brother's Affection

I put on a thoughtful act, pretending to ponder deeply.

'Since Dabin-yang and I fell into the research institute together...'

I should say that I died trying to protect Dabin-yang...

Yeah... That's how it happened.

"It seems like it was a research institute, but... I don't remember very well either."

"A research institute?"

"Yeah. But, I came to my senses first. Then the director named Ruind-nim asked if I was awake."

"Ruind-nim...?"

Dabin furrowed her brow for a moment and began to ponder, as if she couldn't remember.

"Hut."

"Hm? Dabin-ah, what's wrong?"

"Ah... It's nothing. I'm fine."

Her demeanor was as if she was tracing back her memories as if nothing had happened.

But I saw it.

Her momentary flinch.

I gaze at the two small hills swelling up beneath Dabin's pajamas.

'I guess Rebound Healing didn't completely restore her condition.'

Perhaps, even if memories don't carry over, it doesn't completely reset sensations either.

"Uuuhm... I don't remember..."

"Really?"

"Yeah. I don't remember well. All I remember is a bright light? That's about it."

Is that so?

Director Ruind, you vicious bastard...

'What on earth did you do to our cute Dabin-yang that she can't remember anything?'

"Oppa? Is there anything you remember?"

'Hmm. What I remember is...'

Killing everyone and making Dabin my little sister.

The research institute director.

And what else was there.

'Ah!'

"Ah...! The last thing I remember was that. 'Entities from which mana cannot ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠be harvested go to the Disassembly Facility.'"

"Disassembly... Facility?"

"Yeah. The last thing I saw was the incinerator."

Right. I remember.

There was indeed an incinerator deep inside the research facility.

I had lost my mind seeing Dabin unconscious, and then I was murdered by the researchers.

'These wicked bastards. Burning a person alive?'

The researchers had dragged me off to the incinerator, telling me, 'We appreciate you being a solver, but males are not needed for reconstruction.'

'Right. I can use this.'

An opportunity to test Dabin's familial love has arrived.

'From now on, I am a PTSD patient recalling a terrifying forgotten memory.'

I recall the time in the past when I extracted pyrokinesis from a pyrokinesis user.

'It was horrible. I didn't know burning to death would be that agonizing.'

Recalling that experience gives me goosebumps all over my body.

"Uaaaack!"

I screamed, scratching my body furiously.

'As realistically as possible. I was burned alive.'

"O... Oppa?"

She looks flustered seeing me suddenly change.

However, this is a natural phenomenon.

'It can't be helped. I was burned alive in the previous loop.'

I threw a fit and ran into the bathroom.

"Water... Water. Cold water."

The showerhead. And the toilet.

'If I had been burned alive, what choice would I make?'

Turn on the shower? No.

'In that situation, I'd shove my head straight into water first.'

Without a moment of hesitation, I shoved my head into the toilet bowl.

"Ugrub... Geureuk... Geuk..."

"O... Oppa!"

And seeing me like that, Dabin screamed along and followed me into the bathroom.

At first glance, I looked like a crazy person.

I don't know what she thinks, but she must be panicked.

She won't understand, but... she'll understand from now on.

'Suggestion. Lee Dabin vaguely knows that Kang Doyoon lacks mental-type immunity skills.'

As soon as I planted the suggestion, an urgent voice echoed through my muffled ears.

"Magical Girl Transformation!"

Slightly turning my head to watch, I see Dabin transforming with a bright light.

She was in such a rush that she chanted the spell with her magic wand before the transformation even finished.

"Peace to the suffering one before my eyes! Clear Mind!"

A blue light leaks from the magic wand and flows into me.

My mind clears up, and the inside of my head feels refreshing.

'Oh... This is good.'

So this is the magical girl's spell.

As expected, the performance is good enough to say it's filled with love and affection.

'Now that I've received Dabin's love'

An oppa who receives his sister's love naturally recovers.

I slowly drained the tension from my convulsing body.

My body gradually grew limp.

I collapsed onto the floor with only my face jammed in the toilet bowl.

And I felt Dabin's touch carefully catching me.

"O... Oppa...?"

Dabin pulled me out of the toilet, hugging me with her whole body lest I get hurt.

With her left arm, she carefully pulled my chest, and with her right arm, my face.

And then received it against her chest.

'Hmm. As expected, she's pure.'

No matter the situation, catching a man's face with her chest...

'That aside'

I find myself buried in Dabin's unexpected chest.

I can't let this great opportunity go to waste.

I pushed the inside of my cheek outward as much as possible with my tongue and relished the sensation of her chest, even if indirectly.

'Soft and chewy.'

The softness felt through both cheeks.

The texture is great.

'Is a magical girl really different no matter what she does?'

I've touched many women, but none seem to have a mochi-like texture as Dabin.

This perfect texture.

It deserves praise, but there is one regrettable point.

'It's small...'

The texture of her chest is nice, but it's small.

'Well, it can't be helped.'

God is fair, and there is no perfect human.

Then I trembled for a moment.

The reason is to feel the sensation of her chest more.

Since it's small, I have to move more violently to fully enjoy the feeling.

However, given my persona, I can't move actively right now.

'I'll have to make do with this.'

However, thinking this movement was a sequela, Dabin stroked my back and comforted me.

"It's okay... Oppa... It's okay..."

Her voice was slightly trembling.

She seems very worried about me.

"It's okay..."

Dabin carefully hugged me tighter.

In tune with that, I continued to relish the soft sensation.

Then a sudden realization hit me.

'Why is she naked?'

It seems that if she moves during transformation, the outfit doesn't fully manifest.

'Hmm. Wearing a magical girl outfit is an act that requires mental concentration.'

One more piece of information gained.

It might be fun to interfere when she transforms secretly later.

'Since her abilities seem to ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠remain intact even without the outfit, Dabin won't get hurt. She'll probably just be a bit embarrassed.'

Unaware of what I'm thinking, Dabin strokes my back and comforts me.

"I'm right here..."

That aside.

Dabin's reaction is more intense than expected. How do I get out of here?

'How would an ordinary oppa react...'

Ah. Right. That direction would be good.

"Dabin-ah..."

"Yeah... Oppa..."

"Let go..."

"Huh?"

"It hurts..."

At that, Dabin hugged me even tighter.

'As expected of my little sister. Kind, pure, and clean...'

"Oppa, it's okay. It doesn't hurt anymore. I'm here."

"No... That's not it..."

"You can lean on me. I'm Oppa's little sister."

"Because you're a washboard, my face hurts... It feels like it's going to get grated..."

"..."

A brief silence ensued.

When I stealthily raised my head to look up, I saw Dabin's face starting to flush.

"Dabin-ah?"

"..."

Did my words serve as a signal? A sense of pressure began to emanate from the forearms that had been gently wrapping around me.

'Huh... The squeeze is getting... stronger...'

Now it's starting to hurt a bit.

"Dabin-ah? I'm telling you it hurts!"

"..."

"Dabin?"

Now even breathing is becoming difficult.

With my cheek flesh pressed down, I strugglingly meet Dabin's eyes.

"Da... bin-ah... I'm struggling now..."

Glaring blue eyes.

'Were Dabin's eyes always that cold?'

Gone were the colt-like eyes I knew, and in their place was a demon standing right before me.

And from that demon's throat flowed a flat, monotonous voice.

"A washboard."

"Ah... No, that's it. Just. Um..."

"Right. A washboard."

"..."

"If it's a washboard, it's natural for it to hurt. Of course it should hurt."

And then, like fruit stuck in a fruit juicer, my face began to be crushed between Dabin's chest and forearms.

"Aaaack!"

"Stop, stop!"

"Save me! A magical girl is killing a person!"

No matter what I yelled, she just slowly tightened her grip.

"..."

When I pretended to faint, Dabin finally released the armbar.

Sneaking a sideways glance, I saw her kneading her own chest and murmuring to herself softly.

"..Is it really that small..."

"Yeah. It's small."

"Die."

And after taking a serious punch, I passed out.

'Our Dabin. Her hands sting just as much as her chest is small.'

"..."

"Hey, Dabin-ah. Calm down. I told you Oppa was wrong, didn't I?"

"Shut up."

Dabin in front of me seemed displeased with the joke I made this morning.

"I said I'm sorry... No, I said Oppa was wrong! I suddenly came to my senses in that situation, so I subconsciously called it a washboard. I definitely didn't mean to tease you."

"What?"

"Ha... Haha... Sorry."

"I'm average! Average!... Just a little smaller than that!"

Dabin adds quietly at the end, perhaps having a shred of conscience.

'She admits it herself, huh.'

Still, I think that with her having such a complex, her only oppa shouldn't be too harsh on her.

"Hmm. No matter how I look at it, it's not average."

'It is average, though.'

Ha. Am I too soft on my little sister?

Calling a washboard average isn't an easy thing to do.

"Hey!"

However, the response that returned from Dabin was a loud shout.

"Huh?"

"I'm not small!"

Oops. I seem to have blurted out my inner thoughts subconsciously.

However, it's time to climb the tower soon.

Let's stop arguing here and prepare to conquer the research institute.

"Dabin-ah. So, are we going to bash our heads against this Hidden Gimmick?"

"Hey! Uh... Uh?"

"I don't think ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠it'll be easy. It's been a long time since I got caught off guard like this without being able to do anything."

"Th... That's right, isn't it?"

I said to the pondering Dabin.

"Dabin-ah. There's a reason why I couldn't even lift a finger and got caught the moment I went in."

"What is it?"

"I tried to use my ability, but it wouldn't work because of Mana Freeze. That thing your best friend Eunji uses."

"Eh?! Mana Freeze?"

Mana Freeze.

"It seems the research institute director uses it."

Let's just say that because of that, I couldn't use my ability <Instant Acceleration> and got beaten powerlessly.

"So anyway, after I defeat T-Rex, cast that on me."

"Rising Star? I can only use that once a day..."

"Don't you trust me?"

"No, it's not that..."

"Then no problem. Let's go."

Just in time, someone in the distance was waving at us—or rather, specifically at Dabin.

"Dabin-ah! Over here, over here!"

A woman wearing a pointy hat.

Long purple hair. Her wavy hair flutters in the wind.

Her cat-like eyes curve slightly, approaching alluringly.

City-class A... No, A+-class appearance.

However, this A+ was upgraded to S-class due to additional elements.

The two mana-bags swaying with every wave of her arm grabbed my gaze.

"Wow... That's S-class ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠right there..."

As I praise it as S-class in a daze, Dabin speaks as if it's obvious.

"Eunji? Hmm. Right? Because Eunji is S-class?"

"Then why is my little sister A-class?"

"Huh, A-class?"

She looks at me, as if she doesn't understand my words.

"I'm S-class, though?"

"No, I made a slip of the tongue. You're AA-class."

"AA-class? Is there something like that?"

Looking at my face as if asking what nonsense I'm spouting, Dabin soon checked where my gaze was fixed.

"..."

And she starts trembling her fists.

I immediately took a step back, but it seemed already too late.

"Y-You...!"

"Wait. Dabin-ah. I'm sorry. I'll stop teasing you."

"Cut it out!!!"

Like that, I got beaten up until my little sister's friend Eunji arrived.