I Let a Cute Girl Move In and She Tried to Dissect Me

If Chapter 5 was the beginning of my shared living nightmare…

Then Chapter 6 was proof that no one in this school could save me.

Not even the people in charge.

I wasn’t there when it happened.

But I heard about it.

In great detail.

Because apparently, when powerful women get angry…

They don’t keep it quiet.

“THIS IS UNACCEPTABLE.”

The voice echoed through the hallway loud enough to shake the windows.

Even from across the building, I could hear it.

Students froze.

Teachers stopped walking.

Some girls even ducked instinctively like an explosion had gone off.

“…That’s the president,” someone whispered.

“…She sounds mad,” another replied.

Mad?

No.

That didn’t sound like mad.

That sounded like someone preparing to overthrow a government.

Meanwhile—

Inside the principal’s office.

Nanami stood in front of the desk.

Holding the letter.

Crushing it slightly in her grip.

Her expression?

Cold.

But her eyes?

Furious.

“This is a direct violation of academy structure,” she said sharply.

Across from her, the principal sat calmly in her chair.

Smiling.

Of course she was smiling.

Because she’s terrifying.

“I agree.”

Nanami paused.

“…You agree?”

“Completely.”

The principal leaned back slightly.

“That letter is problematic.”

“…Problematic?” Nanami repeated.

Her voice dropped.

“It places a female student in direct proximity to a male subject.”

“Yes.”

“It creates an environment for emotional attachment.”

“Yes.”

“It directly contradicts the academy’s core philosophy.”

“Yes.”

Nanami’s eye twitched.

“…And yet you are allowing it.”

The room went silent.

The vice principal stood beside the wall.

Arms crossed.

Eyes closed.

But even without looking—

You could feel the anger radiating off her.

“…I do not approve of this decision,” she said coldly.

Nanami turned toward her.

“Then we are in agreement.”

“Yes.”

“…Then why is she still there?”

Silence.

The principal’s smile didn’t change.

But something in the room shifted.

“…Because,” she said calmly,

“we do not have a choice.”

That—

That was the first time Nanami looked genuinely shocked.

“…Explain.”

The principal reached forward and tapped the letter lightly.

“That seal is not something we can ignore.”

Nanami clenched her fist.

“…The government has no authority over internal academy policy.”

“That is normally correct.”

The principal tilted her head slightly.

“But this is not a normal request.”

The vice principal spoke again.

“This is a directive.”

Nanami’s eyes narrowed.

“…From who?”

Silence.

For just a moment.

Then—

“The National Academic Research Board,” the principal replied.

“And affiliated government authorities.”

Nanami’s grip tightened.

“…They’re interfering.”

“Yes.”

“…In our academy.”

“Yes.”

Her voice dropped.

“…Why?”

The principal smiled again.

But this time—

It wasn’t playful.

It was knowing.

“Because, Nanami…”

She leaned forward slightly.

“This experiment is no longer just ours.”

The room went cold.

Nanami stood there in silence.

Processing.

Calculating.

Frustrated.

“…So we are being watched.”

“Yes.”

“…Evaluated.”

“Yes.”

“…Judged.”

The principal’s smile widened slightly.

“Always.”

The vice principal stepped forward.

Her gaze sharp.

“Then we tighten control.”

Nanami nodded immediately.

“Yes.”

“If we cannot stop this…”

Her eyes hardened.

“…then we ensure it does not escalate.”

The principal rested her chin lightly on her hand.

“And how do you propose we do that?”

Nanami turned.

Without hesitation.

“I will personally monitor both of them.”

The vice principal nodded.

“I will increase surveillance.”

The principal smiled.

“Good.”

Then she added—

“Because if this situation gets out of control…”

Her eyes glinted slightly.

“…it will not just be the boy who is removed.”

Silence.

Heavy.

Dangerous.

Nanami understood immediately.

“…Understood.”

Back at the mansion—

I sneezed.

“…Why do I feel like someone just decided my fate without telling me?”

Aoi looked up from her notebook.

“That is statistically likely.”

“…That’s not reassuring.”

And just like that…

My already impossible situation—

Got even worse.

The moment Nanami left…

Silence filled the mansion.

Just me…

And her.

Aoi stood in the middle of the massive room, looking around with sparkling eyes like a kid who just entered a candy store.

“…Wow,” she whispered softly.

Her voice was gentle.

Almost soothing.

“This place is amazing…”

I blinked.

“…You’re taking this way too calmly.”

She turned toward me and smiled.

“I’m just happy.”

“…Happy?”

“Yes.”

She held her notebook close to her chest.

“I’ve never had access to such a rare research opportunity before.”

…There it is.

“…I’m not a lab rat, you know.”

She tilted her head slightly.

“…Technically, you are.”

“…That’s not comforting.”

She giggled softly.

Actually giggled.

Wow.

She really is just a cute, shy nerd.

Maybe this won’t be so bad.

“Where should I set up?” she asked.

“…Set up what?”

“My workspace.”

“…Your what?”

Before I could even process—

She walked past me.

Deeper into the mansion.

Opening doors.

Peeking into rooms.

“…This one is too large…”

“…This one has poor lighting…”

“…This one could work…”

“…Wait—NO.”

“What do you mean ‘no’?!” I said, following her.

“You can’t just claim rooms in my mansion!”

She turned back toward me.

Completely calm.

“According to the letter, I am required to live here.”

“…Yeah, I know, but—”

“And in order to conduct proper research…”

She adjusted her glasses.

“I need an environment optimized for observation and experimentation.”

“…That sounds illegal.”

“It’s educational.”

“That sounds worse.”

She stopped in front of a room.

Opened the door.

And nodded.

“This will do.”

I looked inside.

“…That’s the guest bedroom.”

“It is now the research room.”

“…No, it’s not.”

She stepped inside anyway.

Already placing her bag down.

Pulling out notebooks.

Tools.

Equipment.

Wait.

Equipment?

“…Why do you have so much stuff?” I asked slowly.

She paused.

Then smiled softly.

“I came prepared.”

…

…

…

I’m in danger.

She turned toward me again.

Completely back to her gentle self.

“Don’t worry, Ren.”

Her voice was calm.

Reassuring.

“I won’t do anything dangerous.”

“…Define dangerous.”

She thought for a second.

“…Irreversible.”

“…THAT DOESN’T HELP.”

She walked closer.

Too close.

Again.

And gently reached for my wrist.

“…Can I?”

“…Can you what?”

She lightly held my arm.

Her touch was warm.

Soft.

Completely harmless.

“…Your pulse is elevated.”

“…Yeah, because I’m stressed.”

I took a peek and I could see her cleavage. That’s really why my pulse was elevated. I wasn’t stressed I was just a teenage boy who found myself in a wonderful situation with a beautiful nerdy girl.

“Interesting.”

She leaned in slightly.

Her face closer.

“…Your pupils are also dilated.”

“…That’s called fear.”

She smiled.

And wrote something down.

“…Fascinating.”

I swallowed.

“…Maybe this won’t be so bad.”

I swallowed.

“…Maybe this won’t be so bad.”

I mean really, Ren.

Not many teenage boys get to live in a mansion with a beautiful girl who wants to conduct “experiments” on them.

I wonder what kind of experiments?

My mind can’t even imagine—

…

…

No, wait.

It absolutely can.

—

“Ren… I need to test your heart rate under close-range interaction…”

Aoi’s soft voice echoed in my imagination.

She leaned in.

Closer.

Closer.

Too close.

“…Your pulse is increasing.”

“Well yeah, you’re like two inches from my face—”

“For accurate results…”

She gently placed her hand over my chest.

“I must apply further stimuli.”

“FURTHER—?!”

Her face inched even closer.

Our noses almost touching.

“…K-Kissing increases heart rate significantly,” she whispered.

“WAIT HOLD ON—”

—

Another scene.

—

“Ren, for scientific accuracy…”

Aoi adjusted her glasses.

“I must observe your reaction to physical contact with soft tissue.”

“…Soft tissue?”

She looked down.

Then back up at me.

“…Yes.”

“WAIT—WAIT—WAIT—”

She gently grabbed my hand.

And—

—

“REN.”

—

I snapped back to reality.

Aoi was standing right in front of me.

Tilting her head.

Looking slightly concerned.

“…You’re bleeding.”

“…Huh?”

I blinked.

Then felt something warm under my nose.

…

Oh.

Oh no.

A nosebleed.

Classic.

She calmly pulled out a handkerchief and handed it to me.

“Here.”

“…Thanks.”

I quickly covered my nose.

This is bad.

She observed me carefully.

“…Interesting.”

“Nothing interesting happened.”

“Your imagination triggered a physical response.”

“NO IT DIDN’T.”

She wrote something down.

“Subject displays strong reaction to internal stimuli without external input.”

“I SAID NOTHING HAPPENED.”

She looked up at me again.

Soft smile.

Completely calm.

“…I haven’t even started my experiments yet.”

I was really hoping she would begin her experiments sooner”

Aoi Kept walking and Looking around

She stopped in front of a room.

Opened the door.

And nodded.

“This will do.”

I looked inside.

“…That’s the guest bedroom.”

“It is now my room.”

“…Wait, your room?”

She nodded.

“And that room next to it will be my research space.”

“…You’re setting up TWO rooms?!”

“Yes.”

“…I regret everything.”

“Here,” I sighed. “Give me your bags.”

“…You’ll help me?”

“Yeah… before you start turning the entire mansion into a lab.”

She smiled softly.

“Thank you, Ren.”

…That smile is dangerous.

I grabbed her bags.

They were heavier than expected.

“…What do you even have in here?”

“Research materials.”

“…Why do I hear metal clanking?”

“Research materials.”

“…That’s not reassuring.”

After helping her bring everything in, I stepped back.

“Alright, you can unpack. I’m gonna go set up my own room.”

She nodded.

“I will begin organizing immediately.”

…That sentence made me nervous for some reason.

I walked off and found a room for myself.

Dropped my bags.

And sat on the bed.

“…Wow.”

I looked around.

Massive room.

King-sized bed.

Luxury everything.

“…I really live here now.”

I leaned back.

Hands behind my head.

And stared at the ceiling.

“…Okay, Ren. Let’s think.”

Beautiful mansion.

No parents.

And a cute girl living with me.

…

…

“…This might actually be amazing.”

I sat up.

“…What if…”

—

“Aoi… for research purposes…”

She leaned in closer.

“…we need to test romantic proximity.”

“R-Really?”

“Yes.”

“For science.”

—

“…Wait, hold on—”

—

I shook my head.

“…No. No. Bad thoughts.”

This is a trap.

A death trap.

A very attractive death trap.

Night fell.

Everything got quiet.

Too quiet.

I was asleep.

Peacefully.

For once.

Clink.

…

Clank.

…

Scrape.

My eyes slowly opened.

“…Huh…?”

I sat up.

“…What is that noise?”

It was coming from down the hall.

A faint metallic sound.

Over and over.

“…Aoi?”

No response.

I got out of bed.

Still half asleep.

And walked toward the sound.

The door to her “research room” was slightly open.

A dim light flickered inside.

“…Hello?”

I pushed the door open.

And froze.

Aoi stood in the middle of the room.

Surrounded by tools.

Metal instruments.

Strange equipment.

A table.

Right in the center.

“…What…?”

She turned slowly.

Her glasses reflected the light.

Her expression—

Different.

Her eyes.

Spiraling.

“…Ren.”

Her voice was softer.

But something was off.

Very off.

“I was just about to come get you.”

“…Get me for what?”

She stepped closer.

Slowly.

Too slowly.

“For tonight’s experiment.”

“…Excuse me?”

She lifted one of the tools.

“…I want to observe how the male body reacts under controlled stress conditions.”

My brain shut down.

“…What kind of stress?”

She smiled.

And for the first time—

It wasn’t gentle.

“…Dissection.”

…

…

…

“…NOPE.”

I turned.

And ran.

Down the hallway.

Out of the room.

Out of my sanity.

“GET BACK HERE, REN!”

“I’M NOT A SPECIMEN!!!”

I sprinted through the mansion.

Barefoot.

In my underwear.

“I PROMISE I’LL COOPERATE DURING THE DAY!!!”

Behind me—

“THIS IS FOR SCIENCE!!!”

“…I’M GONNA DIE!!!”

And just like that—

My peaceful mansion life ended.

On the very first night.