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Arai Manami (新井愛瞳) is a Japanese former idol and singer. She is a former member of Up Up Girls (Kakko Kari), and a former 1st generation member of Hello Pro Egg. She also did a small project with Ogawa Saki called Cheekids.

She retired from the entertainment industry on December 31, 2021.


Arai Manami, May 2021

Arai Manami, November 2020

Arai Manami, November 2019

Arai Manami, June 2018

Arai Manami, August 2017

Arai Manami, April 2016

Arai Manami, September 2015

Arai Manami, November 2014

Arai Manami, August 2013

Arai Manami, January 2013

Arai Manami, October 2012


In June, Arai auditioned for the Hello Pro Egg auditions and passed.


In May 2007, Arai officially started activities as a Hello Pro Egg member along with Kikkawa Yuu at the Dai Ikkai Hello! Project Shinjin Kouen ~Saru no Koku~ / ~Tori no Koku~.


On February 22, a K-Pop cover dance group called UFZS was formed with Arai, Furukawa Konatsu, Mori Saki, Sato Ayano, and Sekine Azusa.

On March 3, it was revealed that Arai, along with Sengoku Minami and the other members of UFZS, will be members of a new group called Up-Front Girls (Kakko Kari).

On March 9, it was announced that Sato, Sekine, Arai, and Kitahara Sayaka had completed their training within Hello Pro Egg.[1]


On May 5, Arai and Sekine Azusa starred in the stage play Shiritsu Guriguri Gakuen.


Arai had a small role in a two-part horror movie titled ADA. The movie was directed by Koji Shiraishi and was released on July 13.


On August 27, Arai was officially appointed as the special envoy for tourism in Gunma Prefecture. Her responsibility will be to promote Gunma Prefecture's many specialties like local food, products, and sightseeing spots.[2]

Also in August, Arai became one of the eight participants in the Dai 2kai Gravure Henshuu no Kakushidama Grand Prix, a competition for the future "Gravure Queen" of Weekly Playboy magazine.[3] On December 8, it was announced that she had won the readers' vote.[4]


On October 19, Arai and ANGERME's Kawamura Ayano were appointed as the cheer ambassadors for migration to Saijo, Ehime Prefecture.[5]

On December 20, Arai was announced as a founding member of the UP-FRONT esports club.[6]


On July 11, Uber Eats Japan released the "#Burger-in-the-House-Josei" CM starring Arai Manami which went viral in Japan, garnering over a million views on YouTube.


On October 23, it was announced that Furukawa Konatsu, Mori Saki, Saho Akari, and Arai Manami would be graduating prior to the start of the group's new system, leaving Sekine Azusa as the sole remaining original member. The group would hold a final live event as five titled "Up Up Girls (Kakko Kari) FIVE SOUL FOREVER" on December 17 in Zepp Tokyo and a farewell party, which was being planned.[7] Of the graduating members, only Mori Saki plans on retiring from the entertainment industry.[8]

On December 26 and 27, the graduating members held a private graduation ceremony event titled "Up Up Girls (Kakko Kari) Sotsugyou Ceremony ~Tabidachi no Aisatsu~".[9] On December 27, there was also a graduation ceremony which featured all five members, titled "Up Up Girls (Kakko Kari) 5-ri no Sotsugyou Ceremony ~Tabidachi no Aisatsu~".[10]

On December 31, Furukawa Konatsu, Mori Saki, Saho Akari, and Arai Manami officially completed activities with Up Up Girls (Kakko Kari) after performing at the annual year-end Momoiro Clover Z Uta Gassen concert.[11][12] Afterwards, Arai Manami left UP-FRONT CREATE, but remained under YU-M Entertainment as a solo talent.


On November 19, Arai Manami announced that she would be leaving YU-M Entertainment and retiring from the entertainment industry by the end of 2021. She would be concluding her last activities on December 28, and she would also hold a farewell event.[13]

On December 31, she officially retired from the entertainment industry.[14]


  • Favorite Subjects: Math, English, Home Economics, Music.
  • Least Favorite Subject: Japanese
  • Favorite Food: Peaches and bread
  • Least Favorite Food: Mushroom
  • Looks Up To: Kamei Eri

  • Publications[]

    Solo Photobooks[]

    • [2015.11.16] Seventeen Blue


    Ayano, Akari, Azusa, Manamipng.jpg

    • [2012.06.10] Haikei shiryoshu 1 gakko kyoshitsu (Manga x anime kore 1 satsu!) (背景資料集1 学校・教室 (マンガ×アニメ これ1冊!)) (Sato Ayano, Saho Akari, Sekine Azusa, Arai Manami)


    Maana-photo-teknik-digital-2015-05 zpsxi6veti2.jpgImg20150515202453664.jpg

    • [2015.04.20] Photo Technic Digital
    • [2015.05.15] Young Gangan



    • [2013.07.13] Ada ~ADA~ (讐 ~ADA~)

    TV Programs[]

    TV Dramas[]

    • [2016] Sakura Saku (サクラ咲く)



    • Eats bread for breakfast.
    • Has a habit of cracking her knuckles.
    • Her favorite spot is the kotatsu at her house.
    • Was the only Hello Pro Egg to wear glasses, all the time.
    • She was the first Hello! Project member to be born after the formation of Morning Musume.
    • While a member of Hello Pro Egg, she often carried around a photo of Morning Musume.
    • She was born on the same day as former Hello Pro Kenshuusei member Kosuga Fuyuka.
    • Shares the same last name with former Sheki-Dol member Arai Saki
    • She is the youngest person ever to join Hello Pro Egg at the age of 6 at the time of joining.

    Honorary Titles[]

    Honorary Titles
    Preceded by
    Youngest member of Hello Pro Egg
    June 19, 2004 – June 21, 2008
    Succeeded by
    Takeuchi Akari
    Preceded by
    Youngest member of Hello Pro Kenshuusei Ever
    June 19, 2004 – Present
    Succeeded by
    Preceded by
    Youngest member of UFZS
    February 22, 2011 – December 31, 2020
    Succeeded by
    Preceded by
    Youngest member of Up Up Girls (Kakko Kari)
    March 3, 2011 – December 17, 2020
    Succeeded by
    Sumida Haruka


    1. 北原沙弥香、佐藤綾乃、関根梓、新井愛瞳に関してのお知らせ
    2. "新井愛瞳がぐんま観光特使に就任!" (in Japanese). Up Up Girls (Kakko Kari) Official Blog. 2014-08-27.
    3. "アイドルにRQ、読モも参戦! 第2回・新人グラドル“ページ争奪”ガチバトル、エントリーはこの8人だ!" (in Japanese). Weekly Playboy NEWS. 2014-08-26.
    4. "「第2回グラビア編集の隠し玉グランプリ」を制した新井愛瞳は群馬が生んだ青春美少女!" (in Japanese). Weekly Playboy NEWS. 2014-12-08.
    5. "アンジュルム川村文乃とアップアップガールズ(仮)新井愛瞳が「えひめ西条!移住応援大使」に就任!" (in Japanese). Hello! Project. 2017-10-20.
    6. "芸能界“最強ゲームチーム”を決定する「第1回 eスポーツ スターバトル チャンピオンシップ」開催決定" (in Japanese). GAME Watch. 2017-12-20.
    7. "アップアップガールズ(仮)新体制に向けてのお知らせ" (in Japanese). Up Up Girls (Kakko Kari) Official News Blog. 2020-10-23.
    8. https://twitter.com/mori_saki1012/status/1319624629271420928?s=21
    9. "12/26・27 アップアップガールズ(仮)卒業セレモニー ~旅立ちの挨拶~開催決定" (in Japanese). Up Up Girls (Kakko Kari) Official News Blog. 2020-12-15.
    10. "12/27 アップアップガールズ(仮)5人の卒業セレモニー ~旅立ちの挨拶~開催決定" (in Japanese). Up Up Girls (Kakko Kari) Official News Blog. 2020-12-15.
    11. https://twitter.com/uugirlsofficial/status/1344611037299965952?s=21
    12. https://twitter.com/uugirlsofficial/status/1344654826701869058?s=21
    13. http://yum-e.jp/news/3649/
    14. https://twitter.com/arai_manami_ao/status/1476929821074604034

    External Links[]