Hello Pro Kenshusei
Hello Pro Kenshusei is a pre-debut training group established by Japanese entertainment agency Up-Front Group within Hello! Project in 2004.
Members
Hello Pro Kenshusei Hokkaido members
- none
Former members
Debuted members
Past members
| Stage name | Date introduced | Date left | Notes |
| Maho Ooyanagi | June 20, 2004 | August 30, 2005 | Graduated |
| Miyuki Kawashima | June 20, 2004 | September 14, 2005 | Member of Gatas Brilhantes H.P. |
| Mirei Hashida | June 20, 2004 | June 10, 2007 | Graduated |
| Manami Ogura | June 20, 2004 | August 7, 2007 | Graduated |
| Ayumi Yutoku | June 20, 2004 | November 30, 2007 | Graduated |
| Mika Muto | June 20, 2004 | April 30, 2008 | Graduated |
| Erina Aoki | June 20, 2004 | February 1, 2009 | Graduated |
| Azusa Sezaki | April 4, 2009 | May 12, 2009 | |
| Yuri Sawada | June 20, 2004 | August 10, 2009 | Graduated |
| Arisa Noto | June 20, 2004 | September 23, 2009 | After graduating, Noto signed with Style Cube and became a voice actress and motion capture artist. |
| Anri Tanaka | June 20, 2004 | June 12, 2010 | |
| Mia Sainen | June 20, 2004 | June 12, 2010 | |
| Momoka Komine | June 4, 2006 | June 12, 2010 | |
| Asuna Okai | June 20, 2004 | November 28, 2010 | |
| Irori Maeda | June 20, 2004 | November 28, 2010 | She was a member of Shugo Chara Egg! as Amulet Clover after Kanon Fukuda left the group. After leaving Hello! Project, she joined AKBN0. |
| Tomomi Hirano | June 7, 2009 | November 28, 2010 | |
| Runa Kizawa | March 27, 2010 | November 28, 2010 | |
| You Kikkawa | April 7, 2007 | December 24, 2010 | Kikkawa was part of MilkyWay as the character Kobeni Hanasaki. She debuted as a soloist under Up-Front Works in 2011. |
| Sayaka Kitahara | June 20, 2004 | March 9, 2011 | Kitahara was part of MilkyWay as the character Noeru Yukino. She became a voice actress and singer managed by Ken Production. |
| Wakana Nagasawa | March 27, 2010 | September 11, 2011 | |
| Kanae Yamaga | November 12, 2011 | August 26, 2012 | |
| Minami Mogi | June 20, 2011 | November 20, 2012 | |
| Rise Okamura | March 31, 2012 | June 12, 2013 | |
| Jang Da Yeon | June 21, 2009 | July 30, 2013 | |
| Kana Mashiro | May 5, 2013 | October 21, 2013 | |
| Rie Kaneko | June 22, 2008 | December 14, 2013 | |
| Fuyuka Kosuga | January 11, 2012 | May 4, 2014 | Kosuga was originally set to debut in S/mileage September 2011 but had to leave due to health issues. |
| Karen Tanaka | May 5, 2013 | September 1, 2014 | |
| Hirona Ooura | September 22, 2013 | September 1, 2014 | |
| Nanami Tanabe | December 11, 2009 | November 5, 2014 | She originally joined as a member of Shugo Chara Egg! as Amulet Dia after Ayaka Wada left the group. After finishing her training, she became a member of the group One Pixcel, managed by Toho Entertainment. |
| Kurumi Yoshihashi | February 2, 2011 | November 5, 2014 | |
| Kana Mikame | May 5, 2013 | February 26, 2015 | |
| Kana Saito | May 4, 2014 | April 30, 2015 | |
| Honoka Okamoto | April 1, 2015 | November 6, 2015 | |
| Miu Takemura | May 4, 2014 | March 24, 2016 | |
| Yumei Yokogawa | September 22, 2013 | July 28, 2016 | |
| Nagisa Hashimoto | November 29, 2014 | July 28, 2016 | |
| Momoko Shimano | November 29, 2014 | July 28, 2016 | |
| Rion Nakano | April 1, 2015 | July 28, 2016 | |
| Marie Yoshida | September 4, 2016 | March 11, 2017 | |
| Sayaka Goto | December 4, 2017 | February 9, 2018 | |
| Ryo Kitagawa | July 30, 2016 | April 23, 2018 | Former Hokkaido Kenshuusei |
| Kizuki Horie | November 29, 2014 | August 24, 2018 | |
| Mizuki Kanatsu | April 1, 2015 | August 24, 2018 | |
| Kurumi Noguchi | January 15, 2016 | December 2, 2018 | |
| Marina Hibi | March 11, 2017 | December 2, 2018 | |
| Rena Doi | March 11, 2017 | December 2, 2018 | |
| Sakiko Kodama | January 15, 2016 | January 16. 2019 | Former Deluxe Colors member, former Farewell MY L.u.v member |
| Mei Kusunoki | December 2, 2018 | April 2, 2019 | 2018 Hello! Project Only You! Audition Finalist |
| Kotomi Ono | January 15, 2016 | July 26, 2019 | Former Avax Academy Trainee, ANGERME Shin Member finalist |
| Anna Shutto | December 4, 2017 | July 26, 2019 | 2018 Hello! Project Only You! Audition Finalist |
| Hikari Sato | July 30, 2016 | July 26, 2019 | Former Hokkaido Kenshusei |
| Ruru Kanemitsu | December 4, 2017 | December 29, 2019 | Former Hello! Pro Kenshusei Unit member |
| Ririka Hashimoto | August 2, 2019 | April 19, 2020 | Former Hokkaido Kenshusei |
| Hina Shibuya | December 3, 2019 | April 19, 2020 | Former Hokkaido Kenshusei |
| Minori Kawano | July 30, 2016 | March 16, 2021 | Former Hokkaido Kenshusei |
| Karin Nishimura | December 3, 2019 | March 16, 2021 | Former Hokkaido Kenshusei |
| Ichigo Yamada | March 11, 2017 | April 23, 2021 | Former Onigokko member |
| Karin Maeshima | February 14, 2022 | May 23, 2022 | |
| Soara Kawano | March 28, 2023 | October 22, 2024 | |
| Toa Makino | March 28, 2023 | May 28, 2025 | |
| Yurika Asano | February 7, 2024 | August 21, 2025 |