Oniai

Six years after the death of their parents, twin brothers Akito and Akiko Himenokoji are finally reunited. At first, things are going well, but gradually Akiko intends to seriously build a romantic relationship with her brother, and Akito sees in her only a younger sister. Brother and sister now live in a school dormitory, where three neighbors do not give rest to them: a large-breasted queen of male hearts with a katana Arashi, Anastasia with semi-Russian noble roots and Haruomi, looking like a boy. Akito from now on will have to wage a hidden fight with the girls, but for now no one sees it - to write romance novels.

• Akito Himenokoji ( Japanese 姫 小路 秋 人 Himenoko: Ji Akito )

The protagonist of the story. Recently reunited with his sister, since 6 years ago after the death of his parents he was separated from her. To do this, he goes to study at the school of St. Liliana in the second year. Akito wants to live an ordinary life and work hard to achieve his life goal. When Akito reunited with Akiko, he noticed that she was suffering from her brother's complex. Later, the guy finds out that he was once adopted and thus is not Akiko's biological brother. However, the guy decided to keep it a secret. He likes to tease Akiko, despite the attention from his sister, sees in her no more than his younger sister. Akito secretly from everyone under the pseudonym Koichiro Shindo writes erotic novels, where the brother and sister practice incest , thanks to which he became a famous anonymous author.

Seiyu : Ryota Osaka

• Akiko Himenokoji ( Japanese 姫 小路 秋 子 Himenoko: Ji Akiko )

Second year high school student. Outwardly very polite and well-mannered, however, she suffers from the complex of her brother and tries to seduce Akito by all means, while she does not hide her complex and, on the contrary, behaves defiantly, but at the same time denies that Akito has a sister complex. She is the student council secretary, but does not get along well with the rest of the council members. I am sure that she and Akito are twins. Akiko is a fan of the novel by Koichiro Shindo and wants his main character to behave as aggressively as Akito, not suspecting that the author of the novel is Akito himself, and the novel is based on Akito’s relationship with Akiko.

Seiyu : Ibuki Kido

• Anastasia Nasuhara ( Japanese 那 須 原 ア ナ ス タ シ ア Nasuhara Anasutasia )

Second-year student and vice president of student council. Her family owns the world famous Natsuhara company. Anastasia herself has Russian-American roots. Itself is cold and prone to ask strange questions. In a rival relationship with Akiko, she is proud that she wins in almost all respects: growth, origin, blond hair, breast size and position on the student council, but Anastasia’s main drawback is her absolute inability to cook, which she avoids in the right situations. He loves everything cute, playing with soft toys and Alice. Despite the rival relationship with Akiko, Anastasia had a good relationship with Akito and confessed to him on the first school day. However, due to the difficult situation the guy had, he could not give an answer. Requires Akito to call her Ana, but teases him for calling her “Hole” (since Ana (穴) means Hole in Japanese).

Seiyu : Minori Tihara

• Ginbe Haruomi Savatari ( Japanese 猿 渡 銀 兵衛 春 臣 Savatari Ginbe: Haruomi )

Akita childhood friend. Originally from a merchant family and was traditionally raised as a boy. Her family does not allow her to go to work, so she receives financial support from the family. Student Council Accountant. In fact, she came to study at St. Liliana’s school to follow Akito. Akito himself often refers to her as a friend who does not like Ginbe. She is inclined to grumble due to Akito's ignorance when the topic approaches their relationship.

Seiyu : Asami Shimoda

• Arashi Nikaido ( Japanese 二階 堂 嵐 Nikaido: Arashi )

A third-year student of high school and president of the student council. He wears a blindfold on his right eye and a real katana with him. The unconditional leader of the council, is capable of taking on greater responsibility and activity of the council. Has around him a male harem of more than 30 lovers, for which she received the nickname "Predator". However, a special attraction feeds on Akiko. Later it turns out that she is Akita’s cousin and knows that he was adopted at one time in this way promising to help in the right situation. Arashi also knows that Akito is hiding under the pseudonym Koichiro Shindo .

Seiyu : Eri Kitamura

• Alice Takanomiya ( Jap. 鷹 ノ 宮 あ り さ Takanomiya Arisa )

The daughter of the foster family Akito and his bride. She is a genius, and at 12, she graduated from a well-known university and wrote several essays for several well-known professional magazines. It does a very good job with the household. In the 4th volume of the novel is a member of the student council. Akiko sees her as a potential love rival. Despite all this, Akito sees the sisters in both of them. Usually does not show signs of emotion, but this does not stop other people from admiring her charm.

Seiyu : Sumire Morokhoshi

• Kaoruko Dzinno ( Japanese 神 野 薫 子 Dzinno Kaoruko )

Personal editor Koichiro Shindo , worries that Akito suffers from a complex of sisters and tries to help him.

Seiyu : Megumi Takamoto

The anime adaptation released by Silver Link Studios was broadcast in Japan from October 5 to December 21, 2012. Opening to the anime “Self Producer” is performed by Minori Tihara , and the ending “Life-Ru is Love-Ru !!” ( Japanese Life る is LOVE る !! ) is performed by: Ibuki Kido , Minori Tihara , Asami Shimoda and Eri Kitamura . The discovery of the anime attracted some attention due to obvious allusions to sex and incest involving girls in relation to the main male character. ^{[3] [4]}

• Official site of the novel (jap.)
• Official Anime Website (Japanese)
• Anime "Onii-chan Dakedo Ai Sae Areba Kankei Nai yo ne!" In the encyclopedia of Anime News Network
• Anime "Onii-chan Dakedo Ai Sae Areba Kankei Nai yo ne!" In the AniDB database