Ore no Imouto wa Ore no Himitsu wo Shiru Hazu ga Nai!

(俺の妹は俺の秘密を知るはずがない!)

(There's no way my sister knows my secret!)

By: Nyx Stefanus


Chapter 1

My name is Kyosuke Kousaka (京介 高坂), a 17 years old high school 2nd year student in a nearby school. I live in a normal house, with a normal family structure consisting of a younger sister and parents.

I am a normal student, just like you and anyone else around me... well, at least that is what I want to be. The problem with me was that I'm over blessed with talents and luck. Since I was small, I always excelled at everything. Even those that started as small hobbies when I was a little kid, now had become something big.

For example, about 3 years ago when I was still at 2nd year in middle school, I won gold medal in Karate championship across Asia. That medal was not the first one that I received, you know? I have won several similar championships from local to national ones. All of my rivals, friends, and their parents thought that I must be taught karate since I was small and practiced intensely every day. They were awed, and some were jealous.

Hah! I couldn't stand those kind of looks.

You know what? I only started karate because it looked as a cool way to exercise. One day when I was practicing in my backyard, by chance a professional trainer saw me and said that I had a talent. My old geezer took that phrase seriously, and put me into a karate class. My skills became extremely sharp so fast that even my coach was bewildered. Then, I was registered into a local championships, then national ones, and last the Asia championship, and I won gold medals at every championships they registered me into. It was not my intention to achieve a medal, but it just turned out like that.

Just after my first international medal from karate, I started writing my own light novel because I was influenced by a novel that was popular back at that time. Because it was just a hobby, I also started practicing my drawing skill in order to be able to design the characters by my own and also the book cover to make it look as similar as a real light novel. At the 3rd year of my middle school, out of curiosity I tried submitting my first and only light novel that I ever written to a novel writing contest held by a big book publisher 'Kodansha' during the early part of the summer break. And again, my work achieved the 1st rank and I even received a mail from the publisher that my work would be published as an official light novel. Luckily, my parents didn't know about my light novel and thus I replied the mail, saying that I agreed only if a fake name is used on the book instead of my name.

A month later, my novel was released under a fake name of 'Kouichi' (光一). And you know what? It was a big hit, especially among female thousands of fan letters, news, and many different mails arriving in my house, I couldn't hide this anymore so I told my old man about this. He didn't object it, and also fulfilled my wish of keeping this a secret to everyone, without exception. Luckily my mother & my sister didn't know that all those boxes sent to my house for me were letters, so they had no idea that I had become a famous writer.

And then, it happened again. Just 6 months after the release of my light novel during my 1st year in high school, I received mails from game producers, writers, and many more asking me to design characters for them, work as a main artist in several gal games, etc. Apparently, they were attracted by the quality and the style of my drawing. I panicked because of so many requests and deadlines to catch up. Luckily, out of kindness, Kodansha assigned a young assistant & editor to help me manage all those request and in miscellaneous matters.

I didn't complain at all, in fact I thanked them a lot! The new assistant was a pretty young woman aged 19, named Yuki Fujibayashi (由紀 藤林). Apparently, she was still an undergraduate in a nearby university.

And again, the requests for drawing that I took turned out to be another big hit, and my fake name 'Kouichi' became even much more popular.

So, I learned my lessons.

First, DO NOT EVER START A NEW HOBBY. You would end up even busier.

Second, keep all your achievements secret. I hated it when everyone around me saw me as if I was an idol or something. WHAT I WANT IS A NORMAL & PEACEFUL LIFE!

And such, my life as a writer & artist & martial artist began...


"Kyou-chan~ Let's go home together!"

"Ok. Besides, I don't have any club activities on Tuesdays."

I nodded, took my bag and walked towards Manami.

Her full name is Manami Tamura (麻奈実 田村), my only childhood friend. She had short brown hair and gray iris, and a simple oval shaped glasses. She was the typical plain girl that you would usually find in background area in stories that you ignore. But, I liked that part of her. She was the only angel for me who always sought for normal life. If I said that I trusted her more than anyone else in this world, I was not an exaggeration. That was how much I trusted her.

"Kyou-chan, are you going to be busy this week?"

I nodded.

"Yeah, but not that busy. I have finished more than half of the script with the next deadline still 1 month away, and there is few requests for my drawing recently. Moreover, the next karate championship is in summer, and so the practice schedule is very light for this coming few weeks. Why are you asking this?"

"Not for a particular reason~"

Suddenly Manami became happy for no apparent reason, and she walked almost like hopping while humming.

"Kyou-chan, do you want to study together tomorrow? You know, the next term test is coming soon and so we need to be prepared."

"Hmmm... Okay. I always feel more confident in doing the exam after I study with you. Where do you want to study tomorrow? My house?"

Her cheeks expanded like a balloon, and she pouted.

"Don't be so humble. You have always been in the top ten since you were small, and I have never beaten you even once. In fact, if I don't study with you my marks will be much lower."

I snickered. I looked at her, and she was still pouting. After a few moment...

"Well, this time maybe we should study in the library. It's the most effective place to study, right?"

"Well, if you say so, Manami."

I smiled and looked back at her. Then, we started talking about recent news, incidents in school, any subjects that we could think of while walking towards our own houses. After about 10 minutes of walking, we have arrived at the fork of the road.

"Kyou-chan, see you tomorrow in school."

She waved her right hand lively towards me, while walking towards her home.

"Ok. Bye Manami"

I stood still and waved back at her. I watched her back until she took a turn and disappeared from my sight. And then, I started walking on my own road towards home.

I smiled. I always thought that this was the kind of normal and peaceful lifestyle that I yearned every time I went home together with Manami. Going to school, taking lessons in classrooms, having lunch with friends, going to club, and lastly going home together with friends while having conversation about no particular subject. Maybe this was boring to you, but THIS IS the normality and calmness that I yearned for.

After walking for about 5 minutes, I arrived at the front of my house.

"Huuuhhh..."

I sighed. My feeling was heavy. I opened the front door and then took off my shoes.

"I'm back"

Even though I knew that no one would answer me back, I still said that same phrase every time I came back from school. As you can see, my old man always went out to work until dinner time which was at 7 pm. And my mother? Well, she always went out shopping for dinner at this time everyday. How about my sister? here was no need to think of her, because...

I opened the door of the living room, and walked towards the kitchen. While I was walking towards the fridge to get a bottle of milk, I glanced at her.

"..."

There was my sister on the sofa, sitting silently while reading a fashion magazine. Her name was Kirino Kousaka (桐乃 高坂). She was a middle school 2nd year student, and she was a very popular person in the school. Her long blonde hair, her sky blue iris, her pink lips, the cute earrings she wore, the pedicures on her nails, and her cute face were what made her popular. Moreover, her slim body and her job as a fashion model were also reasons for her popularity in school. She also had good results and also the ace in the track & field club in her school.

Usually a brother would be very happy and boasted her towards his friends right? In my case, no. Why? Because...

"You're on my way. Move aside."

She said it with cold voice and pushed my body while I was still drinking. She opened the door of the fridge, took a bottle of apple juice, and drank it directly without using a glass. I stared at her.

"..."

This was the reason! She had absolutely no feeling towards other, and looked everyone as if they were below her. Even me, her only blood related sibling, was treated as a complete stranger and always being ignore by her. I had so much to talk to her, but I remained silent and kept everything inside me.

"Why are you staring at me like that? It's disgusting you know. If you have something you want to say, say it clearly. You muscle head"

For an instant, my face was twitching while trying to make a smile, trying to hold my anger. As usual, she acted very rude towards me. Even the 'muscle head' part. She called me this because of my achievements in karate world. I didn't know why, but she started acting rude like this when she began having her puberty. However, rather than being angry towards her, I always kept my composure and ignored her words completely because she also ignored me all the time.

"Nothing."

I left that word, and walked towards the exit. I couldn't stand the atmosphere.

When I was climbing up the stairs, I heard her voice in the living room. Maybe she was talking on the phone with her friends? It was none of my business.

When I arrived at the second floor, I turned left towards my room and took out my key out of my pocket.

As I was inserting the key into the door of my room, I noticed a square plastic object under the small table in front of my room. The small table was located just between the door of my room and Kirino's room, and it had a vase with a flower inside on it.

I picked up the square object, and glanced through it. It had a picture of a small girl with a pink hair holding onto a magic wand. It was an anime for small children.

"Meruru? Why the hell does this thing doing on this kind of place?"

I had completely no idea. What I did know was that I did remember doing character designs for this anime and some illustrations about this character, but I did refuse to accept some samples from the producer. So, what was this thing doing under the table?

"I had completely no idea. I think I should keep this with me for a while, and maybe ask Yuki about this."

I put it inside my pocket, and opened the door to my room. I threw my school bag towards the corner of the room, and lied down on the bed. I took a deep breath while looking at the ceiling.

"It has been a while since I had this much of free time with me."

All the school works, illustrations & designs requests, karate practice, and the script deadlines made me very busy for this past few weeks. It couldn't be helped.

I moved my eyes across my own room.

"..."

This was what I always did after I went back from school, checking my room for any evidence of forced entry. Why did I look like being paranoia? The reason was easy. Being a popular person always came with lots of fans, and some were just too... extreme. They might be able to figure out my real identity and address, and forced entry into my room to get some items as mementos.

With one glance, my room was no difference from any high school male students in this country. Simple room, with a wardrobe on the wall, a desk, and a bed. On top of the desk, there was a book rack with school books, some novels (some were my own works), small statues as decorations, and some photo frames. A computer on the desk with a pen table beside it, and some posters and certificates for my karate achievements were hung on the wall.

There was no single clue that I was that famous Kouichi... at the first glance. Most of my works were stored inside the computer with a password on it, and any material objects that could reveal my identity were hidden deep under the mountain of clothes inside my wardrobe. All the scripts and drawings that I considered as failures were shredded by the small paper shredder just beside my desk, and I always put the shredded paper inside a plastic bag immediately to remove any trace.

"What should I do now?"

After thinking for a while, I decided to call Yuki to ask about the Meruru anime case that I found in the corridor, and maybe continue some of the scripts that I have been working on.

Apparently, Yuki also had no idea about the Meruru anime case.


After some time passed, I decided to take a break before continuing my work and start studying for the exam. I stretched my body while taking a deep breath, and took a glance at the clock. It was 5.45 pm.

"Maybe I should go to the convenience store."

After nodding to myself, I stood up, put my wallet into my pocket, and put on jacket. I decided to check for my favorite magazines and buy some snacks & drinks for this night in the convenience store. The moment I opened my door...

There was Kirino, kneeling down on the floor with her ass sticking out, and her head under the table. It seemed that she was trying to look for something.

"What are you doing down there?"

The moment I said that to her, her body jerked. She moved her body, and stood up in front of me while turning her back towards me.

"None of your business."

She left that word and walked quickly towards her room without even looking at me for once. She closed the door, and then locked it.

"What's her problem?"

I shrugged my shoulders, and then I also locked my door before I left this house.

The convenience store that I went to was quite large compared to a normal convenience store. The store was located about 10 minutes away from my home, and it opened 24 hours a day. The variety of items was quite large.

After buying some magazines, bottles of drinks, and bags of potato chips, I walked home while eating my favorite chocolate ice cream that I bought just now in the store. On the way home, there was a park where children from the neighborhood always played in, and I stood still just in front of the park, looking at the sunset.

"The sunset here is beautiful as always."

I murmured to myself.

While I was enjoying the sunset, I heard someone calling me just from the bench beside the park. When I looked at that direction, I saw a woman waving her hand at me, while having a big smile on her face.

"Hey~! Over here, Kouichi-sensei!"

In an instant, my face turned white as if all my bloods were sucked by a thousand of vampires. I dashed at full speed towards her, jumped over a fence and the see-saw, and raised my right arm. When I arrived at her, I swung my arm, and landed my fist on her head.

"Ouch! What are you doing Kou-chan!"

"How many times do I have to tell you NOT to call me by that name when we are not working? Especially in public places!"

"Ehh~ There's nothing wrong with it, right? There's only few children and housewives around here at this time. And besides, even if they know that name you will only get popular among the neighbors. There's no downside for you, right?"

"THERE IS, YOU KNOW? How many times do I have to tell you, I want to remain anonymous outside work!"

My breathing became heavy and short after scolding her. It was always like this! This woman, Yuki Fujibayashi, my sole assistant and editor, was like an older sister to me due to her diligence & good care of me, but she liked to make fun out of me every time we met.

I glanced at her. She had a long deep dark crimson hair, reaching until just below the shoulder. Her black eyes looked at my face while having a bit of tears on it. Maybe I hit her too hard? I should hit her softer next time...

"So, what are you doing here? Just came back from university?"

"Yup. I have nothing to do when I go home. So, I decided to sit here and wait for you because you often go to that store around this time. I am lucky to meet you!"

"In other words, you want to use me as your toy to kill time?"

"Yes! Besides, you are happy right? Having a chat together with a beautiful big sis like me."

She took a sexy pose.

"..."

I felt quite annoyed. While staring at her, I took my phone out of my pocket, and started pressing the buttons.

"Wai, wa, wait! Who are you calling now?"

Her face turned pale. Every time she played me like this, I always did this and every time this method worked.

"Your boss. I want to report inappropriate behavior and demand a change in assistant."

She grabbed my left arm, and clung to it. Urghh... as usual, her big breasts were pressing against my arm. While crying, she rubbed her cheek on my arm and pleaded to me.

"Please, anything beside that! My work now is the best possible job that I can get! I don't want to work with some old bearded ugly man! The popularity of your works also makes my salary higher than almost all of my colleagues! And besides, you are young and handsome which makes my work fun!"

"Urgh..."

If you said those words with that kind of face, there was no way I would do that! I put my phone back to my pocket, and then pat her shoulder.

"There's no way I would do that, right? Come one, stop crying."

"You meanie..."

This person was like this. When she cried, her personality became those of a small child. But, this part of her made it easier for me to become a close friend to her. Her friends would be surprised looking at her like this because usually Yuki acted tomboyish.

I sat down beside her, and took out a can of sports drink that I bought just now and gave it to her. We sat down side by side, and looked at the sunset together silently.

After a few minutes...

"So, Kou-chan. How's the progress of your work?"

"So-so, I think. Just now I have finished about two thirds of the script, and I think I can finish it by this weekend. "

"Thank you Kou-chan~ My work will be much lighter after I finish editing your scripts. The rest of my works and homework are not as difficult as editing the scripts, so I can have lots of free time. Oh, by the way, there's a new work for you. Relative to the amount of the work, the pay is quite large."

"What is it?"

She opened her bag, and took out a piece of paper regarding the new request. While showing it to me, she started explaining the details.

"The producers of anime 'Maschera' want you to write the scenario for the upcoming OVA again, and then they also want you to draw some illustrations for the Maschera picture book."

I was silent for a few moment.

"Drawing the illustrations is still okay for me, but the scenario... I have difficult feelings every time I write a BL (boys love) scenario."

"Don't worry, Kou-chan! When you become a homo in the future, I will straighten your sexuality for you!"

She patted my back hard. It was quite painful, but at the same time I also felt happy because I knew that she would take good care of me.

"Hehe, thank you, Yuki"

I snickered, and I was touched by her kindness. Every time I felt down, or my works didn't turn out so well, she was the one that always comforted me. Even though we were complete strangers, I felt that she was more fit to be my real sibling compared to Kirino.

After accepting the new work, I had a short chat with her for about 10 minutes. When the clock showed 6.30 pm, I said goodbye to her and walked back towards my home for dinner.


In Kousaka family, we always had our dinner together at 7 o'clock as my old man ordered. On a small rectangle table, Kirino always sat at my right side, and both of my parents at the opposite side. Just like always, my mother was at the kitchen preparing the food while father was sitting just the opposite of Kirino, wearing a yukata and had no expression at all on his face. As for Kirino, like in every dinner she always kept silent and only talked when someone threw the conversation at her.

During dinner, I remembered about the Meruru anime case that I found this afternoon. So, I asked my father's opinion about anime.

"Oyaji (old man), just now I borrowed some childish animes from my friend who is an otaku because it looks interesting. What do you think about it?"

Immediately, old man stopped his movement and slowly he turned his face on me and stared at me. Crap! Maybe I was being too straight?

"If it's you, I have no problem about it. But still, you should be careful not to be influenced by the otaku culture. The society looks at otaku as if they are the thrash of the society. There is no positive side at being an otaku at all. If one of you become like that, I would hit you hard and bring you back to the proper path."

"O-okay."

My old man had a lot of power in his words even though he said it with almost being completely monotonous. He trusted me this much because he knew that I began writing different genres of light novels, and I needed as much as references as possible, although he didn't know that I also began writing stories for gal games and anime.

Suddenly...

"?"

I felt eyes looking at me. When I glanced quickly at my side, I saw Kirino staring at me. Maybe she felt disgusted knowing that her brother watched those kind of animes? Well, I didn't care at all.

After dinner, I walked towards the entrance hall to get a small box containing letters addressed to me. When I checked the stamps and sender of the box, I knew that this was another fan letters.

I took a deep sigh. Since some of my works got translated into different language, I had been receiving more letters, including those in many different language, like English, German, Chinese, etc. Of course I read them all, because it would be very rude to the fans if I just threw it out without reading the feelings and opinions they had towards my works. But still, it's very bothersome to translate one by one words to Japanese using translation software.

"How troublesome..."

I sighed, lifted up the box, and then I climbed up the stairs. When I arrived at the front of my room, I saw Kirino squatting while doing something to my door. When I looked closely, she was trying to open the lock to my door using her thin hair pin.

"What the hell are you doing?"

I almost shouted at her. It can't be helped; I who was always trying my best to hide my secret, saw directly in front of my eyes my own sister trying to force entry into my room. Don't tell me, she was also another fan of mine?

Kirino jerked her body, and dropped the hair pin on the floor. She stood up suddenly, and turned her face towards my face quickly.

"What's your problem? Shouting like that..."

"Of course there is! This is a normal reaction when you see someone picking the lock of your door!"

"Hahh? Aren't you stupid? You are way over reactive."

Why the hell was this little bastard trying to enter to my room? Was it because she was one of my fan? From the first look, she was not the type to read novels, so why? And then I remembered about the Meruru anime case that I found this afternoon.

Just as she was about to leave the place, I stopped her.

"Wait."

"What? I have no more business here."

"You are looking for this, right?"

I took out the Meruru anime from the pocket of my jacket.

"!"

In an instant her facial expression changed when she saw me holding onto the anime. It seemed that this anime was truly hers. While holding the small box on my right hand, I stretched my left arm towards her.

"T-thank you."

While looking down, she said those phrase with small voice. How many years since the last time she thanked me? I couldn't remember.

"No problem. By the way, why are you so desperate just for a missing anime?"

Her facial expression changed quickly again. This time, it looked like she was angry.

"Huuh? You are stupid, aren't you? You don't understand the awesomeness of this anime! You know, Meruru is- (omitted) "

"..."

I couldn't believe what just happened. Just now she just talked passionately about the anime even though I only put 'just' on my sentence. How come was she acting like this? I had no idea... I stared at her and my mind was blank due to this sudden development.

"!"

She started to realize that she was talking fast and passionately about anime when she looked at my face. Her face turned red, and then she grabbed the anime case from my hand quickly and dashed towards her room. She slammed the door shut, and I could hear the sound of her locking the door.

"What's her problem?"

I shrugged my shoulders, and then entered my room. Inside, I began reading the letters one by one, while continuing my scripts. Reading the letters made me happy, even though some containing negative remarks about my works. After I finished reading half of the letters, I started studying for my exam while drinking bottles of energy drink that I bought in the convenience store this afternoon.


At about 1 o'clock in the morning, my eyes felt tired after hours of studying and I lied on my bed. Because I drank quite a lot of energy drinks, I didn't feel sleepy at all. The other reason was because I always slept at a much later time and slept during most of the school time.

"I think I have completely become a night person..."

I murmured to myself and took a deep sigh. And then...

"Hmm?"

I felt like hearing noise from the door. I tried concentrating on my hearing...

"!"

It was not my feeling! I could clearly hear the sound of someone using screwdriver trying to remove the lock of my door. Quickly, and without any sound, I saved all of my scripts and hid all of the letters inside the wardrobe and locked it. After I turned off my computer, I went to my bed and pretended to be sleeping. Because I had mastered karate, I knew many self-defense moves and so I prepared my body to take down the culprit.

I heard the sound of the door opened, and then the foot steps of the culprit. From the sound, I could tell that the culprit was heading towards me. Because I had practiced my karate a lot, my instinct had become sharper which made me able to tell what the culprit was doing. I could tell that the culprit was extending one of the arms to me.

Just a few moment before the culprit touched me...

"Hmph!"

"Kya!"

I grabbed the arm, then I slipped quickly out of my bed while kicking the leg of the culprit, causing the culprit to lose balance. Then, I quickly turned my body while still holding to the left arm, and took the right harm. I locked both arms and then pushed the culprit's body on the bed.

"What are you doing, you hentai muscle head! Are you trying to rape me?"

"That voice is..."

I looked closely at the face of the culprit, and it was definitely Kirino.

"Kirino! What are you doing in this midnight time in my room?"

I released my arm lock, and turned on the light of my room. I took few steps backwards, and Kirino stood up and faced me.

"I have something to talk to you."

She sat down on my bed. Because there's NO WAY I would sit beside her, so I sat on my desk chair.

"So, what do you want to talk about?"

"Well..."

It seemed like it was something that was hard to talk about.

"You saw my reaction right towards the anime right?"

"Yes."

"So..."

She clenched her fists on the knee, and looked at the floor.

"What do you think of me watching those kind of childish anime? You must be thinking me as stupid right? Or disgusting, or abnormal, or..."

I looked at her eyes, and her eyes got wet. Maybe she was afraid that I might told everyone around me about this, and her reputation would be ruined. Especially if my old man knew about this because he cared her excessively. I heard from my mother that it was hard to persuade that hard headed old man to allow Kirino working as a model. What if he knew about this? Based on what he said during dinner time, I couldn't even imagine it.

I stood up from my seat, and walked towards her. I put my right hand on her head, and patted her.

"There's no way I would do that. Every person has their own interests and opinions, including you. No one has the right to prohibit you from enjoying your hobby, nor the right to make fun about it. If someone makes fun out of you just because you are an otaku, I will hit them on the face hard."

"Really? You are not lying?"

"Why should I do that? I am not the type to joke around if I am listening to someone speaking seriously."

"So you are completely okay with me having this kind of interest?"

"Yup. Or should I repeat the sentence that I said just now?"

I snickered. Even though I hated her, this was a brother's duty to take care of his sister. I couldn't just leave her like this.

"..."

She nodded quietly.

"Relax, I won't tell anybody about this."

I stopped patting her head, and sat on the desk chair again.

"It's already very late now. You should go back to your room and sleep. There is school tomorrow, right?"

She stood up, and faced me.

"Before that, I want to ask you for one more thing. Is it okay?"

I nodded at her.

"Well then... I want to... "

She said it bashfully while looking down at the floor.

"... show you my secret."

To be continued...


Writer's note

This is my first fanfiction for ore no imouto series! I hope you guys will like it. The reason I write this fanfiction is that I feel Kyousuke is way too simple and plain, so I decided to add something to his background information. I also planned to modify all the events in the story. I have read the light novel of this series until the latest volume, which is much further compared to the manga or the anime. So, later chapters might show some spoilers (but changed a bit from the original story).

If you find my english is a bit weird, it's understandable because I read the light novel of this series (in original language), and so sometime I take some phrases from the novel and translated it to English. To be honest, English is not my main language (^_^).

So, see you guys in chapter 2. Bye~