Light novels
The original light novel series, written by Yomi Hirasaka and illustrated by Buriki, began publication on Media Factory's MF Bunko J imprint from August 31, 2009, to August 25, 2015. Eleven volumes in the series have been published.[6] Hirasaka and Buriki also released the light novel Boku wa Tomodachi ga Sukunai Connect in December 2012.[7] Boku wa Tomodachi ga Sukunai Universe (僕は友達が少ない ゆにばーす) is a series of anthology stories by various guest authors, including Yomi Hirasaka, Yūji Yūji, Wataru Watari, Yū Shimizu, Sō Sagara, Asaura, Hajime Asano, Ryō Iwanami, Shirō Shiratori, Takaya Kagami and guest illustrators Buriki, Kantoku, Ruroo, Peco, QP:flapper, Miyama-Zero, Shunsaku Tomose, Yuu Kamiya, Koin, Ponkan8, Hanpen Sakura.
Two volumes of the spin-off Boku wa Tomodachi ga Sukunai Universe were published on November 23, 2011,[8] and February 22, 2013.[9]
Manga
The first Boku wa Tomodachi ga Sukunai manga series, written and illustrated by Itachi, was published in Media Factory's Monthly Comic Alive magazine from March 27, 2010,[11] to December 26, 2020.[12] The series has been collected in twenty volumes. Seven Seas Entertainment has licensed the first manga series in North America under the title Haganai: I Don't Have Many Friends and released it between 2012 and 2022.[13]
A remade manga series, Boku wa Tomodachi ga Sukunai+ (僕は友達が少ない+), written by Misaki Harukawa and illustrated by Shouichi Taguchi, was published in Shueisha's Jump SQ.19 from November 19, 2010,[14] to June 19, 2012.[15]
Anime
In May 2011, an anime television series based on the light novels was announced on the wraparound jacket of the sixth light novel,[30] with an original video animation bundled with the seventh light novel released on September 22, 2011.[31] Produced by AIC Build under the direction of Hisashi Saitō, the series aired in Japan from October 7 to December 23, 2011.[32] The opening theme is "Zannenkei Rinjinbu Hoshi Futatsuhan" (残念系隣人部★★☆) by Marina Inoue, Kanae Itō, Nozomi Yamamoto, Misato Fukuen, Kana Hanazawa, and Yuka Iguchi, while the ending theme is "Watashi no Ki-mo-chi" (私のキ・モ・チ) by Marina Inoue. The anime is based on the first three volumes and the beginning of volume four. The anime was licensed for streaming by Funimation, who hosted the stream on the website and Nico Nico,[33] before licensing the series for home video release.
Game
A visual novel, Boku wa Tomodachi ga Sukunai Portable, was developed by Namco Bandai Games for the PlayStation Portable and released on February 23, 2012.[42]
Live-action film
On April 24, 2013, Ryukoku University posted a casting call for extras for a 2014 film adaptation of Haganai, to be distributed by Toei and produced by "I Don't Have Many Friends" Production Committee, consisting of Times-In, Kinoshita Group, Pony Canyon, Toei Video Company, Toei itself, Kadokawa, Dwango and Guild.[43] Hirasaka later confirmed the film's existence on May 2, 2013, stating that, whilst he initially did not approve of the project, as he did not feel the story was intended for live-action, he decided to approve it in light of a crisis in the light novel industry. Hirasaka will have a completely hands-off role in the film's production.[44][45] Takurō Oikawa, the film's director, chose not to watch the anime and told his cast members not to watch it either so that they can present a fresh interpretation of the light novels.