Yamagishi Riko (山岸理子) is a Japanese pop singer under Hello! Project as a member and leader of Tsubaki Factory. She first joined Hello! Project as a member of Hello Pro Kenshuusei in June 2012 and was introduced at the June 2012 recital alongside Nomura Minami.


Yamagishi Riko, February 2019

Yamagishi Riko, November 2018

Yamagishi Riko, July 2018

Yamagishi Riko, February 2018

Yamagishi Riko, July 2017

Yamagishi Riko, February 2017

Yamagishi Riko, August 2016

Yamagishi Riko, September 2016

Yamagishi Riko, January 2016

Yamagishi Riko, May 2015

Yamagishi Riko, April 2015

Yamagishi Riko, March 2015

Yamagishi Riko, February 2014

Yamagishi Riko, November 2013

Yamagishi Riko, February 2013

Yamagishi Riko, August 2012

Early Life

Yamagishi Riko was born on November 24, 1998 in Chiba, Japan.

She was a part of DSK Dancer's Club prior joining Hello Pro Kenshuusei.


In June 2012, Yamagishi joined Hello Pro Kenshuusei[1] after auditioning for the program.[2] She was officially introduced as a member on June 17 at the June 2012 recital alongside Nomura Minami.[3] Later that summer, she participated in the Morning Musume 11ki Member "Suppin Utahime" Audition alongside several other members of Hello Pro Kenshuusei, but failed.

Begining in 2013, Yamagishi began to take part in activites outside of Hello Pro Kenshuusei starting with the Winter 2013 Hello! Project concert tour, where she was a back-dancer for several performances. She then continued participating in every Hello! Project concert tour, as well as Soto Fest and the annual Hinatsuri Festival and Countdown Lives, as a trainee, until mid-2015.

After the conclusion of the winter Hello!Con, she participated in the stage play Nettai Danshi, which ran from February 7th to February 17, 2013, alongside Kaga Kaede.[4] On March 6th, she participated in a fanclub event for newcomers Ichioka Reina and Makino Maria.

Starting on April 2013, Yamagishi was starring on the Hello Pro Kenshuusei original webshow Hello Pro Kenshuusei no Tadaima Kenshuuchuu!. The show concluded in September. Soon after, on October 5 a new webshow titled ~Onedari Entame!~ Hapi★Pure began airing. Hapi★Pure concluded on September 27, 2014, one year after it began airing.

In fall 2013, Yamagishi participated in Morning Musume's fall 2013 tour alongside several other trainees as a back-dancer. She was later chosen to be part of the opening and challenge act for Morning Musume's fall 2014 Budokan concert, S/mileage's summer 2014 Budokan concert, Berryz Koubou's fall 2014 Budokan Concert, and ℃-ute's spring 2014 concert tour, [5] ℃-ute no Hi concert at Nippon Budokan and spring 2015 concert tour alongside other selected trainees.

In late 2013, Yamagishi auditioned for a role with Engeki Joshibu and passed. She starred in the Engeki Joshibu musical Bokutachi Karen na Shounen Gasshoudan, which ran from March 14 to March 23, 2014, which also features Yasuda Kei, Ogawa Makoto and several other trainees. At around the end of the year, she participated in the stage play Kurukuru to Shi to Shitto, starring Niigaki Risa and Kikkawa Yuu. The stage play ran from December 3rd to December 11, 2014.


In 2015, Yamagishi was featured in the music video for ℃-ute's 27th single A-side "Tsugi no Kado wo Magare" alongside Kaga Kaede, Ichioka Reina, and Horie Kizuki as back-up dancers.

On April 29, 2015, it was announced that Yamagishi would be debuting in a new unit named Tsubaki Factory alongside Kishimoto Yumeno, Niinuma Kisora, Asakura Kiki, Ogata Risa and Tanimoto Ami. Yamagishi's response regarding the new unit:

That I entered the Kenshuusei and then am going to debut in such short fashion makes me nervous, but when I was chosen, I was also surprised. To think that all of those that have supported me until now will be with me forever makes me happy. In Hello! Project there are a lot of groups with varied personalities, I want us to become a group that can reliably put out our personality for everyone to see.[6]

On August 8, it was announced that Yamagishi would be the leader of Tsubaki Factory.


On March 25, Yamagishi announced at Hello! Project Hina Fest 2017 that she would release her first solo photobook titled Riko on April 27.

On November 24, Yamagishi celebrated her 19th birthday at a fanclub event titled Tsubaki Factory Yamagishi Riko Birthday Event 2017, which featured two shows at TOKYO FM HALL.


On May 27, the Fami Hello! PHOTOBOOK was released, including Yamagishi's gravure that was originally published in an August 2017 issue of Weekly Famitsu.[7]

On November 26, Yamagishi celebrated her 20th birthday at a fanclub event titled Tsubaki Factory Yamagishi Riko Birthday Event 2018, which featured two shows at TOKYO FM HALL.


On November 26, she celebrated her 21st birthday at a fanclub event titled Tsubaki Factory Yamagishi Riko Birthday Event 2019, featuring two shows at TOKYO FM HALL.


On March 27, it was announced that she would release her second photobook R-21 on May 13.[8]

On May 14, she opened up an official Instagram account.[9]

Personal Life

Yamagishi has an older sister. [10] She also has a nephew.[11] She owned a miniature dachshund named Annie, whom she had since she was in her first year in elementary school.[12] Annie passed away on March 3, 2016.[13]

Yamagishi was a second year middle school when she initially joined Hello Pro Kenshuusei in June 2012. When she joined Tsubaki Factory in April 2015, she was in her second year of high school. She graduated from high school in March 2017.[14]

The following list are notable friendships Yamagishi Riko has acquired:

Her parents named her Riko by taking the first kanji from each of their names.[15]

The following is a list of nicknames that have been used to refer to Yamagishi Riko:

  • RikoRiko (りこりこ): Official nickname. Given to her since joining Hello Pro Kenshuusei.
  • Yama (やま): Used by Ichioka Reina.



See also: List:Yamagishi Riko Publications Featured In

Solo Photobooks

  • [2017.04.27] Riko (理子)
  • [2020.05.13] R-21




Nettai DanshiBokutachiKurukuruThank You Very BerryKizetsu Suru Hodo Aishiteru!Zoku 11nin Iru!NegaPojiPoji-promo.jpgNettai DanshiHarukanaru Toki no Naka de 6 Gaiden ~Tasogare no Kamen~

TV Programs


Music Videos


Award Place /
Most airhead in Hello Pro Kenshuusei
(March 2014 Issue of Gekkan Entame)[17]


  • She wanted to join Hello Pro Kenshuusei because she liked Minimoni when she was little.[2]
  • She thinks she won't lose to any other member in the droopiness of her eyes.
  • She wants to be someone who makes everyone energetic and to be able to dance cool and sing.
  • For her, the hardest thing about being a Hello Pro Kenshuusei is when she isn't chosen for things and when she feels like she hasn't improved at all.
  • When asked what group she'd like to join, she answered Morning Musume. When asked again later, she said that her dream was to join a Hello Pro Kenshuusei unit.
  • She wants to try singing "Crazy Kanzen na Otona" by ℃-ute.
  • She sang "Kono Machi" for the Hello Pro Kenshuusei Happyoukai 2013 ~Haru no Koukai Jitsuryoku Shindan Test~ event and her number for the event was 15.
  • She says that everything has gotten easier since she joined the program. She's progressed in singing and dancing and has gotten people below her. She thinks she's probably competent when it comes to rhythm but not so much with pitch. Still, she finds the lessons fun and is glad she joined the program.
  • As of August 2015, she has the most theater work from the Kenshuusei.
  • Fukumura Mizuki and Uemura Akari said that they are curious about Riko.
  • Ever since she got her member color, she started to collect green colored items.
  • Her future goal is wanting to appear in dramas and movies, and work with animals.
  • She liked Minimoni.

See Also

Honorary Titles

Honorary Titles

Preceded by

Leader of Tsubaki Factory
2015 – present

Succeeded by



  1. ^ ^ Said during the Hello Pro Kenshuusei corner at the November 16 afternoon show of Morning Musume Concert Tour 2013 Aki ~CHANCE!~.


  1. "アーティスト > ハロプロ研修生 > プロフィール > 山岸理子" (in Japanese). Hello! Project Official Site. 2014-04. (Archived: 2014-04-24).
  2. 2.0 2.1 2.2 "Hello Pro Kenshuusei Perfect Directory" (ハロぷろ研修生パーフェクト名鑑). BOMB Magazine, 2013-12 Issue (pg 52). Gakken Marketing. Release Date: 2013-11-09.
  3. "未来のハロプロ人気アイドルがここに!ハロプロ研修生発表会開催" (in Japanese). DeView. 2012-06-19.
  4. http://gekijyo.net/Gekipro/stage/2013/12/post-46.html
  5. http://www.helloproject.com/news/1588/
  6. "ハロプロ、今年2組目の研修生ユニット「つばきファクトリー」" (in Japanese). ORICON STYLE. 2015-04-29. Translation by MejraThea: "Tsubaki Factory Member Comments." THEA (via Tumblr). 2014-04-29.
  7. "ハロー!プロジェクト20周年記念「ファミハロ!PHOTOBOOK」発売決定!!" (in Japanese). Hello! Project. 2018-04-27.
  8. "山岸理子(つばきファクトリー)セカンド写真集「R-21」発売決定!!" (in Japanese). Hello! Project. 2020-03-27.
  9. "ハロー!プロジェクトメンバーオフィシャルInstagramスタート!" (in Japanese). Hello! Project. 2020-05-14.
  10. http://blog-project.net/yamagishi-riko/232228
  11. Yamagishi Riko. ""あと一週間!"山岸理子" (in Japanese). Tsubaki Factory Official Blog. 2015-05-19.
  12. 12.0 12.1 12.2 12.3 12.4 12.5 Yamagishi Riko. ""自己紹介の続き~" 山岸理子" (in Japanese). Tsubaki Factory Official Blog. 2015-05-18.
  13. ""ありがとう"山岸理子" (in Japanese). Tsubaki Factory Official Blog. 2016-04-26.
  14. ""卒業"山岸理子" (in Japanese). Tsubaki Factory Official Blog. 2017-03-15.
  15. Pocket Morning. 2016-11-06. (Translation by Ro-kun)
  16. 16.0 16.1 Yamagishi Riko. ""始まりましたよ〜( ¨̮ )" 山岸理子" (in Japanese). Tsubaki Factory Official Blog. 2015-05-16.
  17. Gekkan Entame. March 2014 Issue. Published 2014-01-30.

External Links

Tsubaki Factory
Current Members Yamagishi Riko (Leader)Niinuma KisoraTanimoto AmiKishimoto YumenoAsakura KikiOno MizuhoOnoda SaoriAkiyama Mao
Former Members Ogata Risa (Sub-leader)


Indies: 1. Seishun Manmannaka! • 2. Kedakaku Sakihokore! • 3. Hitorijime / Watashi ga Obasan ni Natte mo
Major: 1. Hatsukoi Sunrise / Just Try! / Uruwashi no Camellia • 2. Shuukatsu Sensation / Waratte / Hana Moyou • 3. Teion Yakedo / Shunrenka / I Need You ~Yozora no Kanransha~ • 4. Date no Hi wa Nido Kurai Shower Shite Dekaketai / Junjou cm / Kon'ya Dake Ukaretakatta • 5. Sankaime no Date Shinwa / Fuwari, Koi Dokei • 6. Ishiki Takai Otome no Dilemma / Dakishimerarete Mitai • 7. Dansha-ISM / Ima Nanji?

Other Singles

Collaborations: Hyokkori HyoutanjimaYEAH YEAH YEAH / Akogare no Stress-free / Hana, Takenawa no Toki

Digital Songs Nineteen no Shinkirou ('19 Summer Ver.)

Studio Albums: 1. first bloom • 2. 2nd STEP
Mini Albums: Tsubaki Factory SOUND + VISION Vol.1
Soundtracks: Engeki Joshibu Musical "Thank You Very Berry" Original Soundtrack

Concerts & Events


Spring Tours: 201820192020
Fall Tours: 20182019
One-Day: Tsubaki Factory One-Man LIVE ~First Blossom~

Joint Concerts

2015: New Fes! 2015 (with Country Girls and Kobushi Factory)New Fes! II (with Kobushi Factory)
2018: Premium Live 2018 Haru "KOBO" (with Kobushi Factory)

Other Concerts & Events

Hello! Project Concerts

Summer Tours: 201520162017201820192020
Winter Tours: 20162017201820192020
Hina Fes: 20162017201820192020
Hallo! Fes: 2018
COUNTDOWN PARTY: 20152016201720182019
Other Concerts: Hello! Project 2020 ~The Ballad~

Units & Other Acts
Associated Acts Hello Pro KenshuuseiNICE GIRL Project! Kenshuusei
Hello Pro Kenshuusei
25th Generation Yonemura Kirara
27th Generation Nakayama Natsume
28th Generation Kubota NanamiMatsubara Yulia
29th Generation Saito MadokaOnoda Karin
30th Generation

Hiromoto RuriHashida HonokaNishizaki MikuHirayama YukiKitahara MomoEbata KisakiYofuu RunoMurakoshi AyanaUemura Hasumi

31st Generation

Arisawa IchikaIshiyama Sakura

Former Members
1st Generation Korenaga MikiKawashima MiyukiOkada YuiNoto ArisaMorozuka KanamiAoki ErinaTanaka AnriOse KaedeSengoku MinamiSawada YuriMuto MikaHashida MireiFurukawa KonatsuHashimoto AinaOoyanagi MahoAkiyama YurikaOkada Robin ShokoArihara KannaGoto YukiSainen MiaMori SakiYutoku AyumiKitahara SayakaWada AyakaMaeda YuukaFukuda KanonSaho AkariOkai AsunaSekine AzusaOgawa SakiMaeda IroriArai Manami
2nd Generation Mano ErinaOgura ManamiKomine Momoka
Transfer Student Linlin
3rd Generation Kikkawa Yuu
4th Generation Fukumura MizukiKaneko RieTakeuchi Akari
5th Generation Miyamoto Karin
6th Generation Sezaki AzusaSato Ayano
7th Generation Hirano TomomiKatsuta Rina
8th Generation Takagi Sayuki
9th Generation Tanabe Nanami
10th Generation Kizawa RunaNagasawa WakanaKudo Haruka
11th Generation Yoshihashi KurumiHamaura AyanoTaguchi Natsumi
12th Generation Otsuka AinaMogi MinamiOgawa Rena
13th Generation Yamaga KanaeOda Sakura
14th Generation Kosuga FuyukaUemura Akari
15th Generation Okamura RiseMurota Mizuki
16th Generation Yamagishi RikoNomura Minami
17th Generation Kanazawa TomokoIchioka ReinaKaga KaedeKishimoto YumenoMakino MariaWada Sakurako
18th Generation Sasaki Rikako
19th Generation Tanaka KarenInaba ManakaMikame KanaFujii RioMashiro KanaInoue Hikaru
20th Generation Yamaki RisaYokogawa YumeiNiinuma KisoraOura HironaDambara RuruHaga AkaneFunaki Musubu
21st Generation Aikawa MahoTakemura MiuSaito Kana
22nd Generation Hashimoto NagisaHorie KizukiShimano MomokoOgata RisaHirose AyakaTanimoto AmiInoue ReiAsakura KikiOnoda Saori
23rd Generation Takase Kurumi
24th Generation Ono MizuhoNakano RionYanagawa NanamiMaeda KokoroAkiyama MaoKanatsu MizukiKasahara MomonaOkamoto Honoka
25th Generation Noguchi KurumiOno KotomiKodama SakikoKiyono Momohime
26th Generation Kawamura AyanoYokoyama ReinaYoshida MarieNishida ShioriYamazaki YuhaneHashisako Rin
27th Generation Shimakura RikaHibi MarinaEguchi SayaDoi RenaOkamura MinamiMatsunaga RiaiYamada Ichigo
28th Generation Hashimoto MomokoGoto SayakaTamenaga ShionShutto AnnaKanemitsu Ruru
29th Generation Kusunoki Mei
Indies Singles 1. Kanojo ni Naritai!!! • 2. Ten Made Nobore! • 3. Oheso no Kuni Kara Konnichiwa / Ten Made Nobore! (DVD single)
Soundtrack Singles Karen na Gasshoudan
Campaign Singles Sora ga AruMottainai Baasan Ondo
Albums 1. ① Let's say "Hello!" • 2. Rainbow×2
Concerts & Events
Shinjin Kouen Concerts

2007: MayAugustNovember
2008: MarchJuneSeptemberNovember
2009: AprilJuneSeptemberNovember
2010: MarchJuneSeptemberNovember

Happyoukai Concerts

2011: September
2012: MarchJuneSeptemberDecember
2013: MarchJuneSeptemberDecember
2014: February/MarchJuneSeptemberNovember/December
2015: MarchJuneSeptemberNovember/December
2016: February/MarchJuneSeptemberDecember
2017: MarchJuneSeptemberDecember
2018: MarchJuneSeptemberDecember
2019: MarchJuneSeptemberDecember
2020: MarchSeptemberDecember
2021: MarchJune
Test Events: 201320142015201620172018201920202021

Other Concerts 2010nen Hello Pro Egg Norimen Live 2gatsu2021 Hatsu Tandoku Live ~Episode Zero~Hello Pro Kenshuusei Unit 2021 ~LIVE AT THE BOTTOM LINE~
Units & Other Groups
Sub-Units & Groups Tomoiki Ki wo UetaiShugo Chara Egg!Kashou EggHello Pro Kenshuusei Unit
Debuted Acts
(within UP-FRONT)
THE PossibleMano ErinaS/mileageKikkawa YuuUp Up Girls (Kakko Kari)Juice=JuiceKobushi FactoryTsubaki FactoryBEYOOOOONDS
Associated Acts v-u-denLittle Gatas℃-uteMix GatasMorning MusumeOngaku GatasGatas Brilhantes H.P.MilkyWayHigh-KingAa!Shin MinimoniReborn ElevenJurinCountry Girls
Related Acts Up-Front EggNICE GIRL Project! KenshuuseiHello Pro Kansai KenshuuseiHello Pro Korea KenshuuseiHello Pro Kenshuusei Hokkaido
Community content is available under CC-BY-SA unless otherwise noted.