22/7 (group) explained

See also: 22/7 (TV series).

22/7
Genre:J-pop
Years Active:2017–present
Current Members:
  • Nagomi Saijō
  • Uta Kawase
  • Nao Aikawa
  • Mao Asaoka
  • Satsuki Shiina
  • Runa Shijo
  • Ema Tsukishiro
  • Rino Mochizuki
Past Members:
  • Mei Hanakawa
  • Chiharu Hokaze
  • Mizuha Kuraoka
  • Urara Takasuji
  • Ruri Umino
  • Aina Takeda
  • Reina Miyase
  • Kanae Shirosawa
  • Oto Amaya
  • Mina Kiyoi

is a Japanese idol girl group formed through a media mix project by Yasushi Akimoto, Aniplex, and Sony Music Records, which included the members performing as a musical group and an anime television series based on their characters. The members consist of voice actresses who provide the voice and motion capture for their characters.

History

2017: Debut

An audition for 8 characters, which included both a CD debut and an anime, was held until December 17, 2016, with the final examination taking place on December 24, 2016.[1] On December 25, 2016, the idol group name was revealed as 22/7, which was chosen because it is an approximation to the mathematical constant

\pi

, a transcendental number that represents their concept as "idols transcending through dimensions."[2] Among 10,325 applicants, 11 voice actresses were chosen through voting, with only the first 8 characters announced.[3] The group held their debut showcase on June 16, 2017,[4] and an animated adaptation was announced during their first live event on July 22, 2017.[5] 22/7's first single, "Boku wa Sonzai Shiteinakatta", was released on August 22, 2017, with the jacket designs illustrated by Yukiko Horiguchi.[6] The music video was animated by Tatsunoko Production.[6]

2018: 22/7 Keisanchū, final three characters revealed

On April 11, 2018, 22/7 released their second single, "Shampoo no Nioi ga Shita", with the CD visuals designed by Horiguchi again.[7] A series of animated character shorts were also released.[8] To promote the group's upcoming activities, 22/7 launched individual social media channels for the characters, including YouTube. 22/7's variety show, 22/7 Keisanchū, was broadcast on Tokyo MX beginning July 7, 2018.

22/7's third single, "Rikaisha", was released on August 22, 2018. The song was promoted during their annual live event on July 22, 2018, where they also announced Chiharu Hokaze had been elected the leader of the group.[9] "Rikaisha" debuted at #7 on the Oricon Daily Singles Chart.[10] On September 21, 2018, the last 3 characters for the remaining members of the group were revealed during a promotional event.[11]

2019–present: Departure of Hanakawa, 22/7's anime adaptation

On July 22, 2019, the music video for their fourth single, "Nani mo Shite Agerarenai" was released, becoming the first of their releases to reveal all 11 characters. The single was released on August 21, 2019, with the disc debuting in 4th with 29,000 units sold in its first week on the Oricon Weekly Singles Chart. On December 11, 2019, Mei Hanakawa announced that she was leaving the group due to health issues.[12] Hanakawa's final performance with the group was held on December 24, 2019, where Uta Kawase was introduced as a new member taking over the role of Nicole Saitō.[13]

In February 2020, Takatsuji and Kuraoka went on hiatus due to poor health;[14] Takatsuji resumed activities with the group on May 15 while Kuraoka returned to the group in September 2020. On December 1, 2020, Takeda went on hiatus to focus on her studies.[15] On December 23, 2020, Hokaze announced she was leaving the group to pursue voice acting full-time, her final release with the group being "Boku ga Motteru Mono nara", which was released on February 28, 2021.[16] On March 22, 2021, it was announced Takeda would return on April 10, 2021.[17]

The remaining eight members continued to perform activities. On September 29, 2021, Umino and Kuraoka announced they were leaving the group in November while Takeda announced she was leaving in December.[18] Umino stated her reason for leaving is to pursue voice acting full-time; Kuraoka stated it was to find a career path suitable for her; and Takeda stated she wanted to pursue a career as a model and television personality.[18] On November 2, 2021, it was announced that Takatsuji would be leaving the group following a series of unexplained absences from work.[19] Following the departures of the five members, the project announced on December 27, 2021 that they were retiring the five characters played by them.[20]

Characters

Current

[3]
  • A girl who develops inferior complex, Miu serves as the main protagonist of the anime series. She is a 16-year-old girl from Saitama Prefecture who is distinguishable from bangs that covered her eyes most of the time. Miu was designed by Yukiko Horiguchi.
    [21]
  • Nicole is a 16-year-old girl. She was designed by Kurehito Misaki.
    [3]
  • Nicknamed "Ranran", Sakura is the 16-year-old daughter of a good family. She has a sunny personality with a dark side.[22] Originally, Sakura was not written as an English speaker, but after noticing Amaki had drawn in a large overseas fanbase, she was rewritten as an English speaker who had grown up overseas.[23] She was designed by Kantoku.
    [3]
  • Mikami is a 16-year-old girl with slow pace who came from Kyoto and speaks in Kyoto dialect. She was designed by Kouhaku Kuroboshi. She was revealed as a character in September 2018.[11]
    [3]
  • Toa is a 15-year-old girl from Kanagawa. Has an upbeat personality. She was designed by Yukiko Horiguchi. She was revealed as a character in April 2020. She is one of the "Nananiji Chapter 2" characters.

    Retired

    Reika is a 17-year-old honor student who is part of student council. She was designed by Hirokazu Koyama.[24] The character was retired on December 27, 2021.[20]
  • [25] [3]
  • Miyako is an energetic 17-year-old girl from Osaka who speaks Kansai dialect. She was designed by Mieko Hosoi.[26] The character was retired on December 27, 2021.[20]
    [3]
  • Yuki is a 15-year-old tomboy. She was designed by Akio Watanabe. She was revealed as a character in September 2018.[11] The character was retired on December 27, 2021.[20]
    [3]
  • Jun is a 15-year-old high class girl. She was designed by Masayoshi Tanaka. The character was retired on December 27, 2021.[20]
    [3]
  • Tsubomi is a 17-year-old girl. She was designed by Mel Kishida. She was revealed as a character in September 2018.[11] The character was retired on December 27, 2021.[20]
    [3]
  • Ayaka is an aggressive and militant 17-year-old girl. She was designed by Koharu Sakura.
    [3]
  • Akane is a 16-year-old girl whose personality resembles that of an aloof robot. However, under this face, she is a very hard-working and cheerful girl. She was designed by Tometa Ohara.
    [3]
  • Kaede is an energetic girl from Kanagawa. She was designed by Nari Teshima. She was revealed as a character in April 2020. She is one of the "Nananiji Chapter 2" characters. It was announced on November 28, 2023 that the character would be retired on December 7 following the voice actress's worsening health issues.[27]

    Discography

    Title! scope="col" rowspan="2" style="width:2em;"
    YearPeak positionsSales
    JPN
    [28]     		JPN
    Hot
    [29]
    201710 52
    20188 18
    14 30
    2019415
    2020217
    28
    202128
    23
    202225
    202327
    25
    2024216

    Filmography

    Television

    YearTitleNetworkNotes
    2018–presentTokyo MX22/7's variety show[42]
    202022/7Tokyo MXAnime adaptation
    2021Tokyo MX22/7's variety show (in person)

    Notes and References

    1. Web site: Komatsu. Mikikazu. AKB48 Producer Yasushi Akimoto Plans New 2D/3D Idol Project. Crunchyroll. Crunchyroll. 27 December 2016.
    2. News: 秋元康氏プロデュースアイドル「22/7」、配役&素顔公開 . 2017-05-19. ja . . 2018-06-30.
    3. News: Karen Ressler . Voice Actresses Revealed for Yasushi Akimoto-Produced Idol Unit 22/7 . . 2017-05-20 . 2018-06-30 .
    4. News: 秋元康氏プロデュース「22/7」ら8組競演 ソニーイチ押し新人ライブ . ja . . 2017-06-16 . 2018-06-30 .
    5. News: 秋元康氏プロデュースアイドル「22/7」涙の初ライブ 9・20メジャーデビュー&アニメ化決定. Oricon. ja. July 22, 2017. June 30, 2018.
    6. News: 22/7、堀口悠紀子氏の描き下ろし新ビジュアル公開 . . ja . 2017-08-04 . 2018-06-30 .
    7. News: "K-ON!," "Tamako Market" Character Designer Draws Digital Idol Group 22/7's 2nd Single Visual . Komatsu . Mikikazu . Crunchyroll News . 2017-02-18 . 2018-07-01 .
    8. News: Sherman. Jennifer. 22/7 Idol Project's 1st 2 Anime Character Videos Stream Outside Japan . . 2018-05-30 . 2018-06-30 .
    9. News: 22／7(ナナブンノニジュウニ)、3rdシングル「理解者」を初披露！リーダーに任命された帆風千春さんの抱負は—― . . ja . 2018-07-28 . 2018-08-21 .
    10. Web site: デイリー シングルランキング . . ja . 2018-08-22 . 2018-08-22 . 2018-08-22 . https://web.archive.org/web/20180822162233/https://www.oricon.co.jp/rank/js/d/2018-08-21/ . dead .
    11. Web site: 22/7がデビュー1周年の日に冠番組イベント開催、念願の新キャラクター発表に号泣 . . ja . 2018-09-21 . 2018-10-28.
    12. News: Egan . Loo . 22/7 Idol Mei Hanakawa to Leave Group Before Anime's Premiere. . 2019-12-11 . 2019-12-11 .
    13. News: 22/7結成3周年イベントでアニメのテーマ曲初披露、卒業する花川の役は新メンバーが継承 . ja . . 2019-12-24 . 2019-12-25. 22/7 organization's 3rd anniversary event debuts anime theme song; new members will take over Hanakawa's role.
    14. News: Jennifer . Sherman . 22/7 Voice Actress Mizuha Kuraoka Goes on Hiatus Due to Health . . 2020-02-24 . 2020-12-23.
    15. News: Alex . Mateo . 22/7 Voice Actress Aina Takeda Goes on Hiatus Due to Academic Studies . . 2020-12-02 . 2020-12-23.
    16. News: Alex . Mateo . 22/7 Project's Chiharu Hokaze Graduates From Franchise . . 2020-12-23 . 2020-12-23.
    17. News: Alex . Mateo . 22/7 Voice Actress Aina Takeda Returns from Academic Hiatus . . 2021-03-21 . 2021-03-21.
    18. News: Alex . Mateo . Ruri Umino, Mizuha Kuraoka, Aina Takeda Leave 22/7 Unit . . 2021-09-30 . 2021-09-30.
    19. News: Pineda . Rafael Antonio . Urara Takatsuji Leaves 22/7 Idol Group . 2021-11-05 . . 2021-11-02.
    20. News: Mateo . Alex . 5 22/7 Characters 'Graduate' Following Cast Members' Departure from Franchise . 2021-12-27 . . 2021-12-27.
    21. News: リズムゲームアプリ「22/7 音楽の時間」を本日より事前登録受付開始！ . ja . . PR Times . 2019-12-24 . 2019-12-25. Pre-registration for the rhythm game application "22/7 Music Time" starts today!.
    22. Aniplex USA . aniplexusa . 922924907490566144 . 2017-10-24 . Sally Amaki fans! We got a special comment video where Sally wants to say a few things to her fans! Check it out! #天城サリー #ナナブンノニジュウニ . https://twitter.com/aniplexusa/status/922924907490566144 . 2018-06-30.
    23. News: Sally Amaki's life as an animated idol-pop star . Patrick . St. Michel. The Japan Times. 2018-07-27. 2018-07-27.
    24. Web site: Yasushi Akimoto's New Idol Group That 'Crosses Dimensions' Reveals 4 Character Designs. Anime News Network. 27 December 2016.
    25. Web site: ARTIST. 22/7 – ナナブンノニジュウニ. 22 July 2017. ja. 30 April 2018. https://web.archive.org/web/20180430012915/http://www.nanabunnonijyuuni.com/artist/. dead.
    26. Web site: 秋元康 デジタルアイドル グループ名は『22/7』. ローチケHMV. ja. 27 December 2016.
    27. Web site: 22/7 Project's Mina Kiyoi Ceases Activities With Franchise Due to Health. . 28 November 2023.
    28. Sources for chart positions are as follows:
    29. Sources for chart positions are as follows:
    30. Web site: オリコン週間 シングルランキング 2017年09月18日～2017年09月24日 . 2017-10-02 . 2018-09-28 . . ja . https://web.archive.org/web/20170927114015/https://www.oricon.co.jp/rank/js/w/2017-10-02/ . 2017-09-27 . dead .
    31. Web site: オリコン週間 シングルランキング 2018年04月09日～2018年04月15日 . 2018-04-09 . 2018-09-28 . . ja . https://web.archive.org/web/20180418072719/https://www.oricon.co.jp/rank/js/w/2018-04-23/ . 2018-04-18 . dead .
    32. Web site: 週間 シングルランキング 2018年09月03日付. 2018-09-02. Oricon News. Oricon. ja . https://web.archive.org/web/20180829072531/https://www.oricon.co.jp/rank/js/w/2018-09-03/p/2/ . 2018-08-29 . dead .
    33. Web site: 週間 CDシングルランキング 2019年09月02日付. Weekly CD Single Ranking for September 2, 2019. Oricon. August 28, 2019. ja.
    34. Web site: 週間 CDシングルランキング 2020年03月09日付. Weekly CD Single Ranking for March 9, 2020. Oricon. March 4, 2020. ja.
    35. Web site: 週間 CDシングルランキング 2020年10月12日付. Weekly CD Single Ranking for October 12, 2020. Oricon . https://web.archive.org/web/20201009053521/https://www.oricon.co.jp/rank/js/w/2020-10-12/ . 2020-10-09 . dead . October 9, 2020. ja.
    36. Web site: 週間 CDシングルランキング 2021年03月08日付. Weekly CD Single Ranking for March 8, 2021. Oricon . https://web.archive.org/web/20210303043218/https://www.oricon.co.jp/rank/js/w/2021-03-08/ . 2021-03-03 . March 3, 2021. ja.
    37. Web site: 週間 CDシングルランキング 2021年12月06日付. Weekly CD Single Ranking for December 6, 2021. Oricon . https://web.archive.org/web/20211202011522/https://www.oricon.co.jp/rank/js/w/2021-12-06/ . 2021-12-02 . December 2, 2021. ja.
    38. Web site: ja:=オリコン週間 シングルランキング 2022年07月25日～2022年07月31日 . Oricon Weekly Single Ranking July 25, 2022 – July 31, 2022 . https://www.oricon.co.jp/rank/js/w/2022-08-08/ . dead . https://web.archive.org/web/20220803024530/https://www.oricon.co.jp/rank/js/w/2022-08-08/ . August 3, 2022 . August 3, 2022 . Oricon . ja.
    39. Web site: ja:=オリコン週間 シングルランキング 2023年01月09日～2023年01月15日 . Oricon Weekly Single Ranking January 9, 2023 – January 15, 2023 . https://www.oricon.co.jp/rank/js/w/2023-01-23/ . dead . https://web.archive.org/web/20230118022422/https://www.oricon.co.jp/rank/js/w/2023-01-23/ . January 18, 2023 . January 18, 2023 . Oricon . ja.
    40. Web site: https://www.oricon.co.jp/rank/js/w/2023-06-05/. ja:オリコン週間 シングルランキング 2023年05月22日～2023年05月28日. Oricon Weekly Single Ranking May 22, 2023 – May 28, 2023. Oricon. ja. May 31, 2023. https://web.archive.org/web/20230531030206/https://www.oricon.co.jp/rank/js/w/2023-06-05/. May 31, 2023. dead.
    41. Web site: https://www.oricon.co.jp/rank/js/w/2024-05-13/. ja:オリコン週間 シングルランキング 2024年04月29日～2024年05月05日. Oricon Weekly Single Ranking April 29, 2024 – May 5, 2024. Oricon. May 8, 2024. May 8, 2024. https://web.archive.org/web/20240508021835/https://www.oricon.co.jp/rank/js/w/2024-05-13/. dead.
    42. News: 秋元康氏総合プロデュース、22/7(ナナブンノニジュウニ)初のテレビ番組＆バーチャルYouTuber企画がスタート!! そして待望の3rdシングル発売決定!! . Niconico News . ja . 2018-06-14 . 2018-06-30 . 2020-09-19 . https://web.archive.org/web/20200919134645/https://news.nicovideo.jp/watch/nw3593725 . dead .

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