Ore no Imōto ga Konna ni Kawaii Wake ga Nai

Ore no Imōto ga Konna ni Kawaii Wake ga Nai
俺の妹がこんなに可愛いわけがない
Genre	Comedy, Romance

Ore no Imōto ga Konna ni Kawaii Wake ga Nai
type	light novel
author	Tsukasa Fushimi
illustrator	Hiro Kanzaki
publisher	ASCII Media Works
demographic	Male
first	August 10, 2008
volumes	7

Ore no Imōto ga Konna ni Kawaii Wake ga Nai
type	manga
author	Tsukasa Fushimi
illustrator	Sakura Ikeda
publisher	ASCII Media Works
demographic	Seinen
magazine	Dengeki G's Magazine
first	March 2009
volumes	3

Ore no Imōto ga Konna ni Kawaii Wake ga Nai
type	tv series
director	Hiroyuki Kanbe
studio	AIC Build
network	Tokyo MX, TV Saitama, Chiba TV, MBS
first	October 3, 2010
last	December 19, 2010
episodes	12

Ore no Imōto ga Konna ni Kawaii Wake ga Nai
developer	Bandai Namco Games
publisher	Bandai Namco Games
genre	Visual novel
platforms	PlayStation Portable
released	January 27, 2011

Ore no Imōto ga Konna ni Kawaii Wake ga Nai
type	ova
director	Hiroyuki Kanbe
studio	AIC Build
first	June 27, 2011
last	July 27, 2011
episodes	4

---

Ore no Imōto ga Konna ni Kawaii Wake ga Nai (俺の妹がこんなに可愛いわけがない, lit. My Little Sister Can't Be This Cute), also known as Oreimo for short, is a Japanese light novel series written by Tsukasa Fushimi, with illustrations provided by Hiro Kanzaki. The first volume was published by ASCII Media Works under their Dengeki Bunko imprint in August 2008; as of November 2010, seven volumes have been released. A manga adaptation drawn by Sakura Ikeda started serialization in the March 2009 issue of ASCII Media Works' Dengeki G's Magazine. A 12-episode anime adaptation produced by AIC aired in Japan between October and December 2010. Four additional original video animation episodes will be released in June and July 2011.

Plot

Kyōsuke Kōsaka, a normal 17-year-old high school student living in Chiba, has not gotten along with his younger sister Kirino in years. For longer than he can remember, Kirino has ignored his comings and goings and looked at him with spurning eyes. It seemed as if the relationship between Kyōsuke and his sister, now fourteen, would continue this way forever. One day however, Kyōsuke finds a DVD case of a magical girl anime which had fallen in his house's entrance way. To Kyōsuke's surprise, he finds a hidden adult game inside the case and he soon learns that both the DVD and the game belong to Kirino. That night, Kirino brings Kyōsuke to her room and reveals herself to be an otaku with an extensive collection of moe anime and younger sister-themed adult games she has been collecting in secret. Kyōsuke quickly becomes Kirino's confidant for her secret hobby.

Characters

Kyōsuke Kōsaka (高坂 京介 Kōsaka Kyōsuke)

Voiced by: Yuichi Nakamura

Kyōsuke is the 17-year-old main character of Oreimo. He has a distant relationship with his sister, feeling that this will never change. However, this suddenly changes when he finds one of her adult games and learns that she is an otaku. Through this, he tries to be a supportive older brother while realizing he himself knew very little about his sister, such as being almost flawless at school to working as a model. Later on, he takes up more of his role as an older brother to her, and appears to be able to tell what she is thinking or really meaning to say despite her tsundere personality. Despite this, she is generally the dominant person in their relationship, with Kyōsuke being shown to be openly intimidated by her, only standing up to her in truly serious situations. Kyōsuke prefers to have a relatively peaceful and simple life despite the fact that the drama Kirino brings makes his life anything but peaceful.

Kirino Kōsaka (高坂 桐乃 Kōsaka Kirino)

Voiced by: Ayana Taketatsu

Kirino is Kyōsuke's 14-year-old younger sister. She is mature for her age with a cold, tsundere-like personality. She has a strong "little sister" fetish and owns many adult games with older brother and little sister themes; she got a job modeling to pay for her hobby. Despite her interests, she states she does not know why she started liking it, though it is suggested that she has a brother complex and is using the games as a surrogate to this. She often denies such feelings and believes the 2D and 3D worlds should be kept separate. Nevertheless, she is shown to be very frustrated when her brother is with or shows interest in other girls, such as Manami, who she accuses as being "all over" Kyōsuke. Likewise, she frequently forces Kyōsuke to spend time with her, whether it is playing games or taking her out, but denies that she actually enjoys the time they spend together. She goes as far as hitting him after he complains that she is ordering him around as if he was her boyfriend, and goes out of her way to sabotage his time with another girl. Despite stating she only likes her adult games because of their cuteness, she shows a perverted side to herself when playing. She uses the screen name Kiririn when with her otaku friends.

Manami Tamura (田村 麻奈実 Tamura Manami)

Voiced by: Satomi Satō

Manami is Kyōsuke's childhood friend. She wears glasses and is described as 'plain'. She has a crush on Kyōsuke and blushes to his compliments. Due to the time they spend together, the people around them assume they are dating. According to Kyōsuke, her speech patterns resemble that of a grandmother.

Saori Makishima (槇島 沙織 Makishima Saori) / Saori Vageena (沙織・バジーナ Saori Bajīna)

Voiced by: Hitomi Nabatame

Saori is the leader of the "Anime Girls Unite!" group on the Internet, whom Kirino meets in a meet-up. She wears very thick glasses (shown as swirls) and speaks with an exaggerated tone. She is a fan of Gundam and is also a collector of their model kits. Saori is an aristocrat from a wealthy family, and speaks with a highly formal voice outside of meeting with her friends. She is tall and usually has to get cosplay tailor made. As Kyōsuke says, Saori is drastically different from how she communicates through the Internet and through phone or speaking with her in person, to which she seemingly switches to a refined and sophisticated persona. According to Kyōsuke in the light novels, she is dressed as a typical otaku from television but has the body of a supermodel. Despite her cheery attitude, Saori is quite lonely, living by herself, and has always feared that one day her true friends (Kirino, Kyōsuke, and Ruri) would leave her in a similar way that her older sister (who got married and moved away) left her.

Ruri Gokō (五更 瑠璃 Gokō Ruri) / Kuroneko (黒猫, lit. Black Cat)

Voiced by: Kana Hanazawa

Ruri is another otaku girl who lives near Kirino and often wears gothic lolita clothing based on a character from her favorite anime, even during hot weather, and will sometimes add cat ears and a tail. Due to both of their tsundere-type personalities, she constantly clashes with Kirino when it comes to anything. However, Kuroneko does care for Kirino. Unlike Kirino who likes little sister-themed games, Kuroneko enjoys teen-centered fantasy anime. She often mentions "dark magic", claiming that she has it, usually to Kirino or to Kyōsuke. She is noted to have a very high vocabulary, to where Kirino commented she needed to use a dictionary to translate her novel. Kuroneko actually wears red contact lenses to make her bluish eyes seem red. Kuroneko also has younger sisters, whom she dearly cares for. At school, Kuroneko wears normal clothes and at home, takes care of her younger sisters. In the anime, she later refers to Kyōsuke as "nii-sama" due to her wishing to have an older brother and suggesting to annoy Kirino.

Ayase Aragaki (新垣 あやせ Aragaki Ayase)

Voiced by: Saori Hayami

Ayase is Kirino's friend and classmate who works as a model alongside her and is also her best friend. Ayase is a friendly, nice, and refined lady, but becomes agitated and somewhat violent at the thought that she is being lied to, which she hates above all else. She tends to believe what she sees on the news. Therefore, she disapproves of anime and manga, calling it a disgusting hobby, especially adult games, due to the media portrayal that otaku will eventually become criminals.

Kanako Kurusu (来栖 加奈子 Kurusu Kanako)

Voiced by: Yukari Tamura

Kanako is Kirino and Ayase's fellow friend, classmate and model, who has sometimes swaps between a cute personality to a bratty one. She enters a lot of idol auditions and is a talented singer, able to memorize a song after hearing it only once. She is unaware of Kirino's hobby and generally finds anime childish and otaku disgusting, though she is on one occasion tricked into cosplaying as Kirino's favorite anime character, Meruru, for a contest.

Daisuke Kōsaka (高坂 大介 Kōsaka Daisuke)

Voiced by: Fumihiko Tachiki

He is Kirino and Kyōsuke's domineering father. He is a high ranking officer in the police and has a no nonsense policy at home. He does not like the fact that Kirino is a model, but allows her to do so if she does well in school. He is severely against otaku, believing them to be a waste of a life, so when he finds out Kirino is one, he initially orders her to throw away everything otaku-related in her room. After being given a verbal beat-down by his son, he allows her to keep everything except for the hentai, and even that he reluctantly allows Kyōsuke to keep after the latter claims ownership of it. It is shown he truly does care for Kirino despite his gruff exterior, as he owns every article and picture of all her accomplishments.

Media

Light novels

Ore no Imōto ga Konna ni Kawaii Wake ga Nai began as a light novel series written by Tsukasa Fushimi, with illustrations provided by Hiro Kanzaki. The first volume was published by ASCII Media Works under their Dengeki Bunko imprint on August 10, 2008; as of November 10, 2010, seven volumes have been released.

Manga

A manga adaptation based on the light novels drawn by Sakura Ikeda began serialization in the March 2009 issue of ASCII Media Works' magazine Dengeki G's Magazine sold on January 30, 2009. The first tankōbon volume was released on ASCII Media Works' Dengeki Comics imprint on October 27, 2009; the third volume followed on December 10, 2010.

Drama CD

A drama CD, based on events from the first and third volumes of the novels as well as a newly written scenario by Tsukasa Fushimi, was released by ASCII Media Works on March 31, 2010. The CD stars Ayana Taketatsu as Kirino and Yūichi Nakamura as Kyōsuke.

Internet radio show

An Internet radio show entitled Ore no Imōto ga (Radio de mo) Konna ni Kawaii Wake ga Nai (俺の妹が(ラジオでも)こんなに可愛いわけがない) to promote the anime adaptation began streaming on August 13, 2010 via the official website of the anime. The show is hosted by Ayana Taketatsu, who plays Kirino in the anime, and Kana Hanazawa, who plays Kuroneko. As of November 2010, seven shows have been broadcast, with new episodes being streamed every second and fourth Friday of the month.

Anime

A 12-episode anime adaptation produced by AIC and directed by Hiroyuki Kanbe aired in Japan between October 3 and December 19, 2010. The series will be released over eight BD/DVD compilation volumes, with two episodes each, between December 22, 2010 and July 27, 2011. Four original video animation episodes will be released in the last two BD/DVD volumes on June 27, 2011 for volume seven and July 27, 2011 for volume eight. The BD/DVD exclusive episodes will feature a break in the original story arc starting at episode 11 and offer an alternate ending from the TV broadcast. The anime retains the voice cast from the drama CD. Aniplex USA began streaming and simulcasting the series in North America through Anime News Network (ANN), but security issues involving the illegal leaking of episode two online resulted in the stream being placed on hold. The stream of Oreimo returned to ANN with the first four episodes on November 8, 2010. The opening theme for the anime is "Irony" sung by ClariS and composed by Kz of Livetune, while each episode features a different ending theme sung by one of the voice actors. The music of the anime is composed by Satoru Kōsaki and a soundtrack will be released on January 12, 2011.

Ending themes

1. "Little Sister, Plea~se!" (妹プリ〜ズ! Imōto Purīzu!) by Ayana Taketatsu
2. "Shine!" by Ayana Taketatsu
3. "Horaism" (ほらいずむ Horaizumu) by Ayana Taketatsu
4. "White Heart" (白いココロ Shiroi Kokoro) by Saori Hayami
5. "Orange" (オレンジ Orenji) by Ayana Taketatsu
6. "Forelocks☆" (マエガミ☆ Maegami☆) by Satomi Satō
7. "Masquerade!" by Kana Hanazawa
8. "Chameleon Daughter" (カメレオンドーター Kamereon Dōtā) by Hitomi Nabatame
9. "'Cause I Love You!" (好きなんだもん! Suki Nanda mon!) by Ayana Taketatsu
10. "No, Tom Has Learned Sexual Arousal for His Little Sister" (いいえ、トムは妹に対して性的な興奮をおぼえています Iie, Tomu wa Imōto ni Taishite Seiteki na Kōfun o Oboete imasu) by Yukari Tamura
11. "Akihabara Dance Now!!" (アキハバラ☆だんす☆なう!! Akihabara☆Dansu☆Nau!!) by Ayana Taketatsu, Kana Hanazawa and Hitomi Nabatame
12. "I'm Home." (ただいま。 Tadaima.) by Ayana Taketatsu

Episode list

#	Title	Original air date
01	There's No Way I'd Fall in Love with My Little Sister "Ore ga Imōto to Koi o Suru Wake ga Nai" (俺が妹と恋をするわけがない)	October 3, 2010	{{{FirstEngAirDate}}}
After bumping into his little sister, Kirino, in the hall, Kyōsuke Kōsaka finds a magical girl anime DVD which contains a little-sister themed adult game inside. Kyōsuke soon learns the game belongs to Kirino and confronts her about it, though says she would not be weird for having such a hobby and would offer his advice any time. Later that night, Kirino brings Kyōsuke into her room, where she reveals her secret stash of erotic games, explaining that she loves little sister types, though is unable to explain how she got into it. Having not had anyone to share her hobby with, Kirino gets Kyōsuke, who promises to keep her obsession a secret from their parents, to play through one of her adult games for an unbiased opinion.
02	There's No Way I'd Go to an Offline Meeting with My Little Sister "Ore ga Imōto to Ofu Kai ni Iku Wake ga Nai" (俺が妹とオフ会に行くわけがない)	October 10, 2010	{{{FirstEngAirDate}}}
Noticing Kirino has no one to share her hobbies with, Kyōsuke asks for advice from his friend, Manami Tamura, who suggests that she make some otaku friends. Kirino joins an online community and is invited to an otaku tea party at a maid café in Akihabara, but has trouble talking to any of the other members. However, she is later asked to join members Saori Vageena and Kuroneko, the latter of which gets into a heated debate with her about their favorite anime. After a day of shopping around Akihabara, they decide to keep sharing messages while Kyōsuke finishes the game Kirino asked him to complete.
03	There's No Way My Little Sister is This Cute "Ore no Imōto ga Konna ni Kawaii Wake ga Nai" (俺の妹がこんなに可愛いわけがない)	October 17, 2010	{{{FirstEngAirDate}}}
Kirino hangs out with Saori and Kuroneko again and is surprised to find that they do not have to worry about hiding their hobbies. Later that day, Kirino's father learns of her hobby and becomes angry at her. Kirino becomes upset that her hobby has been called "worthless" and runs off, prompting Kyōsuke to catch up with her. After seeing Kirino show no desire to give up a part of her life, Kyōsuke stands up to his father for her. Though he allows Kirino to keep her hobby, he still shows concern for the adult games Kirino had been seen with, so Kyōsuke claims they are his, earning him a punch in the face. Kirino later gives her thanks to Kyōsuke, who is taken aback by her unexpected cuteness.
04	There's No Way my Little Sister would go to Summer Comiket "Ore no Imōto ga Natsu Komi Toka Iku Wake ga Nai" (俺の妹が夏コミとか行くわけがない)	October 24, 2010	{{{FirstEngAirDate}}}
When Kirino forces Kyōsuke to play a beat-em-up adult game, he asks Saori for some playing advice. While Kirino has her school friends over, she receives a package from Saori, unaware it is a collection of dōjinshi, forcing Kyōsuke to stop her from opening it in front of her regular friends, but his attempts to protect it from her land them in an even more awkward situation. Afterwards, one of Kirino's friends, Ayase Aragaki, apologizes to Kyōsuke on Kirino's behalf and exchanges phone numbers with him. As way of apology for the incident, Kirino forces Kyōsuke to take her to Summer Comiket, along with Saori and Kuroneko. When a special data disc Kirino wants is sold out, Kuroneko wins it for her in a beat-em-up contest. Just as they leave the Comiket, they are spotted by Ayase.
05	There's No Way My Little Sister's Friend is This XX "Ore no Imōto no Shin'yū ga Konna Batsubatsu na Wake ga Nai" (俺の妹の親友がこんなＸＸなわけがない)	October 31, 2010	{{{FirstEngAirDate}}}
When Ayase suspects Kirino is hiding something, she puts pressure on her and eventually discovers her hobby, telling her they can no longer be friends. Noticing Kirino falling into despair, Kyōsuke resumes his life counseling duties and tries talking to Ayase, who says she wants to make up with her, but cannot accept her hobby having seen reports of crimes relating to adult game. Kyōsuke asks for advice from his father, who helps him by giving the full story on those reports. Although Ayase still refuses to make up with Kirino after Kyōsuke reveals the truth behind the news story, Kirino gains the courage to stand up to her and expresses her love for both her friends and adult game. When Ayase still has doubts about her hobby, Kyōsuke puts on a bold act, which causes Ayase to hate him. However, Ayase realizes that her fight with Kirino is pointless in comparison and apologizes to Kirino for her harsh words. Shortly after, Kyōsuke receives a text from Ayase thanking him for helping her and Kirino make up, though warns him not to do anything indecent to Kirino.
06	There's No Way My Childhood Friend is This Cute "Ore no Osananajimi ga Konna ni Kawaii Wake ga Nai" (俺の幼馴染がこんなに可愛いわけがない)	November 7, 2010	{{{FirstEngAirDate}}}
At school, Manami invites Kyōsuke over to her house to try out some sweets made by her family's shop for a Halloween event. One of Kyōsuke's friends points out that he and Manami are pretty close, but Kyōsuke denies there is anything romantic; however, he admits he would not allow any guy to go out with her. Later at Manami's house, Kyōsuke tries out the sweets made by Manami and ends up helping her family prepare for the event; he agrees to spend the night. Manami's grandpa tricks them into sharing the same room that night, which prompts them to talk. Kyōsuke reveals to Manami that if he was confessed to, he would reject the confession in order to maintain his peaceful lifestyle. Meanwhile, back at the Kōsaka house, Kirino is noticeably frustrated that Kyōsuke is staying over at Manami's house.
07	There's No Way My Little Sister could Write a Novel "Ore no Imōto ga Konna ni Shōsetsuka na Wake ga Nai" (俺の妹がこんなに小説家なわけがない)	November 14, 2010	{{{FirstEngAirDate}}}
Having read Kuroneko's fanfiction online, Kirino decides to write some of her own. The two of them get into a fight concerning their literature tastes. After Kirino posts her novel online, she receives a tentative publishing offer. In order to get inspiration for her next novel, Kirino drags Kyōsuke around the city on Christmas Eve. She manages to get Kyōsuke to buy her some earrings, claiming that they were for emotional support. When Kyōsuke claims that Kirino is doing this simply for her own self-gratification, she pours a bucket of cold water over her head to prove otherwise. They stop by a hotel so Kirino can shower and change her clothes. Out on the streets again, Kyōsuke feels closer to Kirino as he notices her warm smile while wearing the earrings that he bought her.
08	There's No Way My Little Sister Could Get an Anime "Ore no Imōto ga Konna ni Anime-ka na Wake ga Nai" (俺の妹がこんなにアニメ化なわけがない)	November 21, 2010	{{{FirstEngAirDate}}}
While Kirino's novel becomes increasingly popular, her editor reveals that it may be adapted into an anime. Overjoyed, she invites Saori and Kuroneko with her to the anime staff meeting. However, she is shocked at the number of changes the anime staff requested, most notably changing the lead protagonist from female to male. Kirino collapses from exhaustion after returning home, so Kyōsuke takes Kirino's place at the next meeting in order to plead her case. During the meeting, Kyōsuke begs the anime staff to reconsider Kirino's decisions, with Kuroneko also providing her opinions, both for and against. After some back and forth, the anime staff finally agree to some of their requests. On the train ride home, Kyōsuke tells Kuroneko and Saori to keep his involvement a secret from Kirino. Kuroneko questions Kyōsuke's dedication to his sister and then expresses envy at having older siblings. Later, Kirino tells Kyōsuke that the next life counseling will be the last.
09	There's No Way My Little Sister Can Play an Adult Game Like This "Ore no Imōto ga Konna ni Erogē Zanmai na Wake ga Nai" (俺の妹がこんなにエロゲー三昧なわけがない)	November 28, 2010	{{{FirstEngAirDate}}}
Kirino gets a long awaited adult game in the post and spends the entire day playing it, despite some frustration in the beginning when one character is cold towards her. Unfortunately for Kyōsuke, who is trying to study in the next room, Kirino gets really interactive with the adult game. Meanwhile, Kuroneko stays at home and tends to her little sister, who is a Meruru fan. Elsewhere, Saori plans for a maid-themed party for Kirino and Kuroneko.
10	There's No Way My Little Sister Can Cosplay Like This "Ore no Imōto ga Konna ni Kosupure na Wake ga Nai" (俺の妹がこんなにコスプレなわけがない)	December 5, 2010	{{{FirstEngAirDate}}}
After Kirino gets annoyed with her for not understanding certain aspects of her hobby, Ayase asks Kyōsuke to give her advice on a present she can give her to make up with her. After shopping around with Kuroneko and Saori for ideas, Kyōsuke learns of a cosplay contest offering a rare Meruru figurine for the winner. With Ayase objecting to cosplaying, they manage to trick her model friend, Kanako Kurusu, into cosplaying as Meruru for the contest. However, when they spot Kirino in the audience, Kyōsuke has to make sure Kanako doesn't spot her. Despite her loathing of the situation, Kanako manages to put on a winning performance and win the prize, admitting she had a little fun doing so, though shows an utter disgust to her otaku fans.
11	There's No Way My Little Sister Can Be a Maid "Ore no Imōto ga Konna ni Meido na Wake ga Nai" (俺の妹がこんなにメイドなわけがない)	December 12, 2010	{{{FirstEngAirDate}}}
After running into her at the supermarket, Kyōsuke invites Manami over to his house to help him make lunch. However, Kirino isn't too pleased with having Manami around and makes various plans to hamper her visit, ranging from giving her arduous tasks to laying embarrassing pornographic traps in Kyōsuke's room. Later, Saori holds a 'personal harem party' for Kyōsuke with Kirino, Kuroneko and herself dressed as maids. There, Kuroneko shows off a perverted manga with characters based on Kirino and Kyōsuke, and later even starts calling him "nii-san" much to the ire of Kirino. Kyōsuke has a small outburst at Kirino for her behavior, until she gives him a present, saying she is grateful for all his help.
12	There's No Way My Little Sister's Life Counseling Can End Like This (Good End) "Ore no Imōto no Jinsei Sōdan ga Kore de Owaru Wake ga Nai -Good End-" (俺の妹の人生相談がこれで終わるわけがない　～GOOD END～♥)	December 19, 2010	{{{FirstEngAirDate}}}
One morning, Kyōsuke is surprised to find Kirino behaving politely to him. That evening, while Kyōsuke worries about whether she is forcing an act in front of everyone, Kirino uses her final life counseling session to ask Kyōsuke to buy her an adult game that is launching at midnight in Akihabara. As Kyōsuke gets in line, he runs into his classmate, Akagi, who is buying a yaoi adult game for his own sister. Meanwhile, Kuroneko calls Kirino about the cat ears she is making for her and also tells Kirino that she might be going to change "her way of calling" Kyōsuke. After Kyōsuke gets back home with the game, Kirino asks him to play with her. Later that night, Kyōsuke learns that Kirino plans to leave home for America in the morning for track and field training, which disappoints him since she never told him about it before. Kirino becomes enraged when Kyōsuke does not show the behavior she expected of him and beats him up. The next morning, Kirino decides not to go, and later also announces to Kyōsuke her life counseling is not over yet, which makes Kyōsuke happy.

Visual novel

A PlayStation Portable visual novel titled Ore no Imōto ga Konna ni Kawaii Wake ga Nai Portable is developed by Bandai Namco Games and will be released on January 27, 2011. The limited edition bundle will include an OAD, a sister-talk bonus CD, and an additional game for the PSP.

Reception

The Mainichi Shimbun reported that the fourth volume as the light novel which sold the most copies in August 2009. Anime News Network reported in April 2010 that the first five light novels have sold collectively 920,000 copies in Japan.

External links

• Official website (Japanese)
• Anime official website (Japanese)
• Visual novel official website (Japanese)
• Oreimo (anime) at Anime News Network's Encyclopedia

ko:내 여동생이 이렇게 귀여울 리가 없어 ru:Ore no Imouto ga Konnani Kawaii Wake ga Nai th:โอเระ โนะ อิโมโตะ กะ คนนานิ คาวาอิ วาเคะ กะ ไน zh:我的妹妹哪有這麼可愛！