📢 Maybe you see "V2" or "V3" and so on in the NOVEL TITLE, it means what VOLUMES the NOVEL is.
📢 Maybe you see "V2" or "V3" and so on in the NOVEL TITLE, it means what VOLUMES the NOVEL is.

I’m the Only One Who Knows the Secret of the Perfect Neat and Tidy Committee Chairperson Who Lives Under One Roof Chapter 2

The Girl with a Reason


Scene 2: The Girl with a Reason

…So, ever since she arrived, my parents were all smiles, all day long.

After all, Kurokawa was just as perfect at home as she was at school – perfect expressions, perfect manners, perfect actions. Her mere presence in our living room seemed to brighten the atmosphere.

During lunch preparation, despite being a guest, she helped my mother in the kitchen and even managed to impress her, who has quite the opinion about cooking, with an exquisite meat and potato dish.

Compared to their only son, who mostly lounges around playing games when at home, she was on a whole different level. By the afternoon, when they finally took a break, my parents left for work with smiles I had never seen before. Both of them work as priests at the shrine next to our house.

As my mother was leaving, she said,

“Make yourself at home, dear. You’re practically our daughter now.”

That phrase didn’t sound like mere politeness but more like it came from the heart.

Anyway, that aside, it was three in the afternoon.

The parents were out, and on this holiday afternoon, I was left alone with Kurokawa in the living room, sitting opposite each other on the sofa.

I didn’t specifically wish for this situation. After lunch, it felt awkward to leave while my parents were engaging Kurokawa in conversation, so I completely missed the chance to go back to my room.



We were sitting opposite each other but not making eye contact. To be precise, I could feel Kurokawa’s intense gaze on me, but I kept avoiding it.

Unable to bear the silence, I grabbed the remote and turned on the TV. It was a lazy holiday afternoon, and there wasn’t much on, but it was better than the ongoing silence.

A rerun of a detective drama started playing. It was in the middle of the story, nearing its climax, with the criminal being cornered at the edge of a cliff.

But then—

“Do you find this interesting?”

Kurokawa suddenly muttered from across the sofa with a clear voice. I couldn’t just ignore her, so after a moment of silence, I shook my head slightly.

“…Not really.”

“Then I’ll turn it off.”

She turned off the TV without question and continued looking at me intently.

“Let’s talk, ‘Ta-kun.'”

…Ta-kun. She called me that again.

I thought it was a misunderstanding this morning, but it seems it wasn’t. But that makes it all the more uncomfortable for me.

That was how she used to call me when we were childhood friends, always running around together.

It’s unthinkable for the “Princess” she has become to call me that.

“…What do you want to talk about? Kurokawa and I don’t have anything in common.”

I realized my tone was rather brusque and continued, even though I was aware of it.

“There’s nothing to talk about between us. You don’t need to force a conversation just because you’re staying here. There’s no need to be so considerate—”

“Are you being considerate towards me?”

Kurokawa cut me off, suddenly leaning over the table towards me, her face coming close enough that I could feel her breath.

Her deep blue eyes, like a tranquil lake, pierced through me, and in a fluster, I turned my face away and responded.

“…Of course, I am. How should I act around someone amazing like Kurokawa?”

She shook her head at my words.

“I’m not amazing.”

“You are. You’re great at studying, manage everyone in the class, and you’re respected.”

As I said this, she blinked several times and looked at me even more intently.

“What else?”

“Else? What do you mean?”

As I wondered why she was digging deeper, I tried to calm my racing heart and continued.

“…You never forget your homework, and you can perfectly handle any unexpected questions from teachers.”

“What else? What else?”

“I don’t know, …you’re really beautiful, and your voice is cute.”

I immediately regretted blurting that out. Who says such things to a girl? It’s borderline harassment.

But, ignoring my internal panic, she simply nodded, “I see…” and then sat back down on the sofa, clearing her throat softly before saying,



Confused by her statement, she looked slightly dissatisfied and said,

“Call me Chika, that’s what I mean.”

“Why would I suddenly do that? Everyone at school calls you Kurokawa.”

“At home, I’m called Vetochka. Starting today, this is my home, so you should change how you call me, Ta-kun.”

“Then, Vetochka.”


With her decisive words and intense gaze, I was left with no choice but to…

“Alright, I get it. Uh, Kuro… no, Chika.”

I easily gave in, uttering that name for the first time in over a decade.

Then Chika, formerly known as Kurokawa, nodded in approval and stood up from the sofa with a cheerful demeanor.

“Then, from today onwards, please take care of me, Tan-kun.”

She left the living room with a smile as tender and unchanged as ever.

Following her departure with my eyes, I listened to her footsteps ascending to the second floor and muttered to myself softly.


It was a terribly nostalgic way to address her.

When we were little and played together, that’s what I used to call her.

Her mother used to call her “Veetochka” affectionately, and I thought that was her name.

Veetochka. It was hard for me to say back then, so I shortened it to Chika.

This nickname-like address was unique to me – probably no one else called her that, just like no one else called me ‘Tan-kun.’

“Why revert to such an old way of addressing each other?”

While leaning back on the sofa, I sighed deeply, pondering this question.

Even if our way of addressing each other reverted, both Chika and I were completely different from those times. Even living in the same house, the distance between us was immeasurably far.

At least, that’s what I thought at the time. However, I was soon to realize that wasn’t the case.

The turning point came that very night.

Dinner was all about Chika’s prowess.

Before my parents returned from the shrine, she had already finished all the preparations and, with practiced hands, prepared a flawless Japanese menu – grilled fish, miso soup, tamagoyaki, and more.

I helped out a bit, but as I’m basically hopeless in the kitchen, I mostly just set the plates. Naturally, my parents were overjoyed with the meal she presented.

Chika modestly said,

“I don’t know if it suits your taste.”

But as perfect as she is, there was no chance of her showing any weaknesses here, and every dish was exquisite.

While taste preferences vary from person to person, to me, it even seemed more delicious than my mother’s cooking. Of course, I was too embarrassed to say it aloud.

After such an evening, I took a bath and decided to go to bed earlier than usual, having spent the day in constant tension and feeling tired. More than anything, I wanted to avoid the repercussions of staying up late on the next morning.

I didn’t want Chika to see me in a flustered state if I overslept – a small point of pride.

So, around ten o’clock, I quickly got into bed and closed my eyes, but…

“…Can’t sleep.”

As expected. I’m usually awake until the date changes, so trying to sleep early didn’t come easily.

And there was another reason. Chika’s assigned room was right next to mine.

I heard her footsteps in the corridor just before; she must be in her room. Being unavoidably aware of her presence only increased my tension, leaving me wide awake.

However, it was pointless to get up now, so I continued lying in bed with my eyes closed… and just as the date changed.


A scream jolted me awake.

Wondering what was happening, I got up and left my room. It was common to hear drunken shouts outside at night, but this was clearly different – it was definitely coming from inside the house.

My parents are deep sleepers, so they didn’t wake up. With a flashlight in hand, I looked around and found…


There she was, at the end of the corridor near the toilet.

“…Ta, n-kun…?”

She murmured in a trembling voice, looking bewildered.

Wearing a loose, pale pink nightgown, her hair, usually tied up, was now flowing freely. Though slightly startled by her casual appearance, I was more focused on her unusual behavior.


“…Good evening, Tan-kun. How are you?”

Her voice suddenly became formal. I asked her,

“Why are you sitting here?”

Indeed, she was sitting right there in the corridor, in her nightgown.

“I just thought I’d cool off a bit.”

“In front of the toilet? At this hour?”

“It’s something humans do sometimes, right?”

She tried to sound confident, but something was off. Feeling this strangeness, I continued to probe.

“Did you hear that scream earlier?”

“Scream? What are you talking about?”

“That loud, monstrous yell. Sounded like a monster or something.”

“It’s not a monster.”

“So, you did hear it.”

I pressed her on this, and Chika slightly raised her eyebrows, closing her mouth. As I grew more suspicious of her behavior, that’s when it happened.

A bell-like sound chimed.

At the same time, Chika’s eyes widened…



Though not as intense as before, a muffled scream of distress was spilled.

Chika, who usually remains calm, clung to my leg, looking around with tearful eyes.

“What, what, what’s this, what is it!?”

“Calm down. It’s just a cat.”

“A cat!? A bakeneko?”

“Just a normal cat. Look.”

As I pointed my flashlight, a black cat sat by the washbasin near the toilet, its small window slightly ajar. The cat looked at us as if saying, “What are you doing here?”

Around its neck hung a blue collar with a bell, the source of the sound we heard.

“My mother feeds it. It often comes like this at night when she leaves food in the small window.”

“…Your sense of security is a bit concerning.”

“Nobody can get in through this window.”

While saying this, the cat turned away indifferently, its bell chiming as it left.

After this incident, I finally turned my attention to Chika, still clinging to my feet.

“So, about that scream just now…”

I asked cautiously, and Chika, as if resigning herself, slowly said,

“…If you promise not to tell anyone, I’ll tell you.”

“Of course, I promise.”

“Then, let’s talk in your room.”

With an air of seriousness, she said this, and I nodded, somewhat swept along by the moment.

“…Aren’t you coming?”

“Help me up.”

I felt her weakening grip as I took her slender, white hand and pulled her up.

Once we were in my room, Chika curiously looked around.

Bookshelves, computer, nothing particularly embarrassing, but still, having a girl, especially a beauty like Chika, in my room made me uneasy.

Oblivious or not to my inner thoughts, she approached a rack in the corner and picked something up.

“Hey, what’s this? It looks cute.”

It was a DVD case, with a charmingly cute mascot-like character on a black background. She studied it and I responded, “It’s a movie. Watching them is a hobby.”

“Really? But it seems surprisingly cute.”

“No, it’s a gory splatter horror.”


She muttered, stunned, quickly placing the DVD back on the rack and then picking up a book.

“What about this? The cover has a cute girl… Is it something erotic?”

Noticing the title, she froze again. The book, titled “True Accounts of Japan’s Mysterious and Evil Spirits,” was quickly returned to the shelf. She looked at me with a clouded expression.

“…Do you like this kind of stuff?”

“Well, it’s not about liking… My family, you know.”

My parents, being in the clergy, often received consultations about exorcisms and the like.

I grew up watching them work, which somehow led me to these kinds of horror stuff.

But that’s beside the point.

“Never mind about me. About what happened earlier…”

As I urged her to continue, Chika sat down on my bed without hesitation. I pulled up a chair to face her.

After a brief silence, she finally began to speak.

“…About that scream earlier. Actually, it was me.”

“I know.”

“How did you know!?”

It was almost obvious given the situation. Holding back such a retort, I exhaled softly.

I couldn’t tell how she took my demeanor, but with a serious look, she stared at me and continued.

“Do you remember… when we used to play together a lot?”

“A little.”

That’s a lie. My memories with her from that time are treasured, but I replied that way, not wanting to seem too sentimental.

“A little?” she muttered, slightly discontented, then continued.

“Back then, I was a bit of a scaredy-cat, wasn’t I?”

“A bit?”

“In my memory, she was so timid that she would wet herself at the slightest noise in the dark at home, and she’d faint just a few steps into a haunted house at an amusement park. Even now, I remember how easily scared she was, but…”

“Just a little,” she insisted, pushing through without any room for argument. I found myself nodding involuntarily, saying “Ah, yes.”

“…So, you see. Even now, I’ve almost completely overcome those fears. The only things that still scare me are ghosts, aliens, and unidentified creatures. But still, occasionally… very occasionally, when something completely unexpected happens, I get startled and let out a scream.”

“That was more than just a ‘scream.’ It felt like an incident, that horrific cry you let out…”

I muttered, to which Chika pursed her lips again. I don’t know why, but she seemed different today than usual.

Her shocking scream and the revelation of her still being easily frightened were surprises in themselves, but there was more.

I can’t quite put it into words, but… she was showing more expressions than usual. It almost reminded me of how she used to be a long time ago.

Lost in these thoughts, Chika continued speaking.

“I’m perfect at school, aren’t I?”

“Well, yes,” I agreed.

“That’s why… it’s really troubling that Tan-kun knows about this now.”

Despite it being her who screamed and talked afterwards, I nodded in agreement and said, “I understand.”

“It’s okay. I won’t tell anyone. This secret will go to the grave with me.”

“Eh, that far…?”

She looked taken aback for a moment but then shook her head and said, “Not that! I’m not talking about keeping secrets. I need Tan-kun’s help to overcome my fearfulness.”

“Overcome your fearfulness?”

I asked, echoing her words, and she nodded emphatically.

“If things stay as they are now, something might trigger a similar reaction at school. Then, I won’t be able to maintain my ‘perfect’ image anymore. That’s why I want to ask you, the only one who knows about this.”

She leaned in close as she spoke, leaving me bewildered.

“I’m not sure what you’re asking for…”

“Any method is fine. I’ll listen to anything Tan-kun suggests.”

“Anything means…”

It sounded like a joke, but her earnest blue eyes were serious.

That’s why I… eventually gave in easily.

“Alright, I understand. If you insist that much, I’ll help you.”

“Really? Are you sure?”

“Yeah. …If you keep screaming like that, I don’t know what the neighbors will start saying about us.”

“It’s not that bad.”

“It is that bad,” I said, shrugging my shoulders. Yet, Chika quickly smiled and extended her hand.

“Then, once again, please take care of me, Tan-kun.”

As I took her hand, I nodded and added,

“…If we’re going to do this, I won’t hold back, you know.”

“That’s exactly what I want!”

She declared, her face beaming with an innocent smile. This smile was completely different from the one she wore at school, where she’s called ‘Princess.’

Feeling a bit dazzled by her smile, which was just like the one I remembered from our past, I gripped her hand in return.

📢 Maybe you see "V2" or "V3" and so on in the NOVEL TITLE, it means what VOLUMES the NOVEL is.
I’m the Only One Who Knows the Secret of the Perfect Neat and Tidy Committee Chairperson Who Lives Under One Roof

I’m the Only One Who Knows the Secret of the Perfect Neat and Tidy Committee Chairperson Who Lives Under One Roof

Hitotsu Yane no Shita de Kurasu Kanpeki Seiso Iinchou no Himitsu wo Shitte Iru no wa Ore Dake de Ii., ひとつ屋根の下で暮らす完璧清楚委員長の秘密を知っているのは俺だけでいい。
Score 9
Status: Ongoing Type: Author: Artist: Released: 2022 Native Language: Japan
Svetlana Kurokawa is a well-behaved, high achiever, and super chairperson of the committee. She is also my childhood friend whom I have not seen in several years.However, this seemingly perfect Kurokawa has a “certain” secret…“Tak-kun, you’re here! There’s probably something in there.”In fact, she is so timid that she cannot go to the bathroom alone at night!When Kurokawa’s parents were transferred overseas, I decided to live with her and help her overcome her weakness.“I’m afraid of …… being alone, so why don’t you sleep with me?”I’m afraid of being alone, so I’m going to sleep with you.“Hey, are you okay with my high school life!?”


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