Japanese light novel series and its adaptations
My Sister, My Writer, known in Japan as and abbreviated as Imo-Imo, is a Japanese light novel series written by Seiji Ebisu and illustrated by Gintarō. A manga adaptation by Kō Narita launched in "Monthly Dragon Age" from December 2017 to September 2019, and an anime television series adaptation by NAZ and Magia Doraglier aired from October to December 2018.
Plot.
Suzuka Nagami is a beautiful third-year student who excels in her academics. One day, a novel written by her wins a light novel award which is based on a little sister who dotes on her brother. Suzuka decides to give all the credits to her brother Yū Nagami under the pen name Chikai Towano due to her student council president position and their strict father. Suzuka and Yū join a fan service to make progress for her novel, but Suzuka begins to harbor real, forbidden feelings for her brother.
Voiced by: Tasuku Hatanaka
Suzuka's elder brother. He is a first-year high school student. In his middle school, he became an otaku after reading light novels. Later on, he becomes an author with the pen name Chikai Towano. Compared to his successful sister, Yū is a talentless and an average student. He thinks that he is an untrustworthy brother and mistakenly believes that Suzuka hates him because she is always rude towards him. Deep down inside he cares for his sister, and he has never experienced the feeling of protectiveness and affection (young sister moe) for his sister. 
Voiced by: Reina Kondō
Yū's sister is an extreme beauty and is perfect in everything she does. Unlike her brother, Suzuka is very popular in school, where she is the student council president. She always tries to become a reliable person, even to Yū. Nobody knows that she is crazy about her brother. When she suddenly desires to write a novel entitled "The Story of a Little Sister Who Loves Her Big Brother so Much It Causes Trouble", she asked her brother to become a writer using a false name after she wins an award. Later in the series, after graduating, she enrolls in Yū's school.
Voiced by: Yui Ogura
Yū's classmate who is a proud writer and beautiful inside and out. Yū is unaware that Mai is the light novel writer whom he praises so much, and is a huge fan of Chikai Towano. She personally meets Yū and tries to find out the secret behind his "talent".
Voiced by: Chinatsu Akasaki
An illustrator from the United Kingdom. Ahegao is a cheerful four-eyed girl with big breasts. She never leaves a chance to make sexual references and loves sexually explicit things. Her favorite one is sadism, which means deriving pleasure from humiliating others. Her pen name is derived from a sensual facial expression usually seen in pornography in the manga.
Voiced by: Kazusa Aranami
A professional voice actress who won who was selected in her first audition. Sakura does not have any weak points and can perform in any kind of role. She aspires to become the voice actress for a little sister character, and is also a great fan of Chikai Towano's writing. Even though Yū is younger than her, she loves to pretend to be his little sister and nicknames him as "Onii-chan".
Voiced by: Eri Kitamura
Voiced by: Ayumi Mano
Voiced by: Yua Nagae
Voiced by: Yui Nakajima
Media.
Light novels.
Seiji Ebisu published the first volume of the light novels, with illustrations by Gintarō, in 2016. The series is published by Fujimi Shobo under their Fujimi Fantasia Bunko imprint.
Reception.
The anime adaptation of "My Sister, My Writer" was panned for its subpar animation quality. Brian Ashcraft of Kotaku described the show as one of the most notable production disasters of 2018. According to the credits of episode 2, the most likely reason for the series' deteriorating animation quality was due to studio Buyu being in charge of key animation as opposed to the main NAZ and Magia Doraglier studios. Buyu is a production company that was only in charge of in-between animation and finish animation in episode 1, and the studio usually serves as a subcontractor for other companies. Additionally, multiple individual staffers were credited with key animation rather than individual companies.
References.
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