Light novels
A light novel series, titled Gendai Nihon ni Yatte Kita Sega no Megami ni Arigachi na Koto (現代日本にやってきたセガの女神にありがちなこと), was written by Tōru Shiwasu, with illustrations by Hatsune Miku artist Kei Garō. It began serialization in ASCII Media Works' Dengeki Bunko Magazine on June 10, 2013.[5] ASCII Media Works published the first volume on December 10, 2013 under Dengeki Bunko imprint[6] while the second volume followed on June 10, 2014.[7]
Anime
An anime adaptation titled ''Hi-sCoool! SeHa Girls'', which was produced by TMS Entertainment using the MikuMikuDance animation software, aired in Japan between October 8[8] and December 24, 2014 on Animax and was simulcast by Crunchyroll. The series was directed by Sōta Sugawara, who also co-wrote the anime's screenplay with Masayuki Kibe. The CG character designs used in the anime were co-designed by Sugawara and Kio, who based the designs on Kei Garō's original concepts. Shigeyuki Watanabe handled the CG direction.[8] The opening theme is "Sehagaga Ganbacchau!!" (セハガガがんばっちゃう!!) sung by Dreamcast (Mao Ichimichi), Sega Saturn (Minami Takahashi) and Mega Drive (Shiori Izawa). The ending theme is "Wakai Chikara (Sega Hard Girls Mix)" (若い力-SEGA HARD GIRLS MIX-), based on the Sega company song "Wakai Chikara",[9] sung by SC-3000 (Mai Aizawa), SG-1000 (Yū Serizawa), SG-1000 II (Naomi Ōzora), Game Gear (Minami Tanaka) and Robo Pitcher (Haruna Momono).
An additional OVA was released as part of the DVD box set on November 3, 2016.[10] The Japanese DVDs included download codes for the show's character models for use in MikuMikuDance.[11] The anime was licensed in North America by Discotek Media, and was released via a Blu-ray and DVD combo pack on May 30, 2017; the OVA is not included in the North American release.[12][13]
Manga
An anthology manga series, Chikiu Boueitai! SeHa Girl (ちきう☆防衛隊！ セハガール), featured stories written and drawn by multiple creators. The series was serialized in Dengeki Maoh magazine in 2014, and was later compiled in a single tankōbon volume in February 2015.[14]
Video games
The Sega Hard Girls version of Dreamcast makes a cameo appearance in Dengeki Bunko: Fighting Climax; the game's updated release, Dengeki Bunko: Fighting Climax Ignition, adds an additional stage based on ''Hi-sCoool! SeHa Girls''.[15]
A crossover game with Compile Heart's Hyperdimension Neptunia series, titled Superdimension Neptune VS Sega Hard Girls (超次元大戦 ネプテューヌVSセガハードガールズ 夢の合体スペシャル),[16][17] was released for PlayStation Vita in Japan on November 26, 2015[18] and later on released in North America on October 18, 2016[19] as well as Europe on October 21, 2016.
Online radio show
An online radio show, SeHa Girls' Hardcore Sega Info Radio (セハガールのハードなSEGA情報RADIO), known as SeHaRadi (セハラジ) for short, featured the voice actresses of the franchise providing updates on Sega Hard Girls media and merchandise, commenting on Sega related news, and answering listener questions.[26] The series premiered on October 12, 2024 on Nippon Cultural Broadcasting's Super! A&G+ digital radio station, and aired for 195 episodes, concluding on July 1, 2018.[27]
