Hello Pro Kenshuusei

Hello Pro Kenshuusei (ハロプロ研修生; Hello Pro Trainee) (formerly Hello Pro Egg (ハロプロエッグ)) is a collection of young girls selected through auditions, or added specially by Tsunku, that are receiving dance and vocal lessons in the hopes that they will one day be able to debut as full idols within Hello! Project.

Not yet being full members within Hello! Project, the girls mainly perform at Hello! Project concerts as back-up dancers for the major acts. The Kenshuusei also hold their own concerts and have their own songs. Some Kenshuusei have acted in various dramas, plays and musicals.

2004: Formation
From June 19 through June 20, 32 winners were selected from the 10,570 applicants of the Hello Pro Egg Audition 2004, and formed Hello Pro Egg.

On August 10, all of the winners of the "Hello Pro Egg Audition 2004" began activities within Hello Pro Egg except Arai Manami and Maeda Irori, who began activities in 2007, and Okada Yui, who joined v-u-den. 4 of the members were designated as futsal trainees, with the goal of someday becoming full fledged players of Gatas Brilhantes H.P.. On August 14 and 15, Gatas Brilhantes H.P. participated in the Odaiba Cup, where futsal trainees Korenaga Miki and Kawashima Miyuki were promoted as full fledged players for the team.

On October 18, Gatas Youth, later renamed Little Gatas, was formed with futsal trainees Tanaka Anri and Muto Mika as two of its players.

2005-2006
In October 2005, Tomoiki Ki wo Uetai was formed.

In January 2006, Arihara Kanna joined ℃-ute.

In April 2006, Kitahara Sayaka, Fukuda Kanon, Okada Robin Shouko, and Hashida Mirei released the digital single, Sora ga Aru.

In June 2006, Mano Erina, Ogura Manami, and Komine Momoka, the winners of the "Up-Front Group "Egg" Audition," joined Hello Pro Egg.

In August 2006, THE Possible was formed. That same month, Muto Mika became a member of the temporary futsal team Mix Gatas.

2007-2008
In April 2007, Muto Mika joined Gatas Brilhantes H.P. as a full fledged player.

In June 2007, futsal trainees Noto Arisa, Sengoku Minami, Sawada Yuri, and Mano Erina were promoted to Gatas Brilhantes H.P. as reserve players. They were also announced to be members of the upcoming group Ongaku Gatas.

In July 2007, Gatas Brilhantes H.P. players Korenaga Miki and Muto Mika were revealed as members of Ongaku Gatas.

In January 2008, Korenaga Miki graduated from Hello Pro Egg to concentrate on Gatas Brilhantes H.P. and Ongaku Gatas. Noto Arisa took her place as leader of Hello Pro Egg.

In March 2008, Mano Erina graduated from Hello Pro Egg and became a soloist within Hello! Project. Kitahara Sayaka and Kikkawa Yuu also formed the unit MilkyWay with Kusumi Koharu.

In September 2008, Shugo Chara Egg! was created to record the theme songs for the anime, Shugo Chara!.

2009
In the April issue of De☆View (released in March 2009), Sato Ayano appeared alongside Noto Arisa and Kaneko Rie, as a Hello Pro Egg member. During the Yokohama HOP! concert in April, Sato Ayano's membership was officially announced, as well as the addition of new member Sezaki Azusa.

In June, then leader Noto Arisa left Hello Pro Egg, supposedly leaving no other Egg to take her place as leader.

In July, Wada Ayaka, Maeda Yuuka, Fukuda Kanon, Saho Akari, Ogawa Saki, Takeuchi Akari, and Miyamoto Karin joined chanpuru units.

On November 23, it was announced that S/mileage would graduate from Hello Pro Egg and make their debut in Hello! Project in 2010. Initially when the group was first formed on April 4, Tsunku had said that in order to make the best group possible, additional members might be added or current members might be removed. Wada Ayaka, Maeda Yuuka, Fukuda Kanon, and Ogawa Saki were confirmed to be the definitive line-up of S/mileage. They debuted on March 27, 2010, and S/mileage would later make their major debut in May.

Later in 2009, an audition was held for the new Amulet Dia for Shugo Chara Egg!, and Tanabe Nanami was added to Shugo Chara Egg! as well as Hello Pro Egg.

2010
In 2010, during Morning Musume's 9th generation audition, Tsunku announced that Eggs between 11 and 17 were eligible to audition for Morning Musume and would automatically pass the first round.

Between June and December, began going through major line-up changes, and several members of Hello Pro Egg left. At the end of 2010, it was also announced that Sengoku Minami and Kikkawa Yuu had finished their egg training. It was also announced that Kikkawa would be the opening act for Hello! Project's 2011 Winter Tour, and that she was going to start a solo career.

2011
At the first day of the Hello! Project 2011 winter tour, it was announced that Fukumura Mizuki would be joining Morning Musume as a ninth generation member. Jang Da Yeon also became a member of the new Hello Pro Korea Kenshuusei.

After the announcement, it was announced that Mori Saki, Furukawa Konatsu (in January 2011), Kitahara Sayaka, Sekine Azusa, Arai Manami, Sato Ayano (in March 2011), and Saho Akari (in April 2011) had also graduated. Kitahara would go on to have a solo career and the other girls plus Sengoku Minami would go onto form Up Up Girls (Kari).

On September 10, it was announced that 2nd generation S/mileage sub-member Kosuga Fuyuka would leave the group due to severe anemia, but would return to Hello! Project as a member of Hello Pro Kenshuusei after her recovery.

On September 29, it was announced that Kudo Haruka would be joining Morning Musume as a tenth generation member. Two weeks later, Takeuchi Akari and Katsuta Rina officially became members of the second generation of S/mileage.

2012
In January, the name of the program was officially changed from Hello Pro Egg to Hello Pro Kenshuusei.

In September, It was announced that Hello Pro Kenshuusei would release their first single. The title was revealed to be Kanojo ni Naritai!!! and it was sold during S/mileage Live Tour 2012 Aki ~Choi Kawa Banchou~. The song is sung by Otsuka Aina, Tanabe Nanami, Hamaura Ayano, Miyamoto Karin, and Taguchi Natsumi.

On November 20th, it was announced that selected Kenshuusei would be in a stage play, called Nettai Danshi (熱帯男子).

In an interview with Kaneko Rie, regarding the recently added Kenshuusei and the 12gatsu no Nama Tamago Show concert, Kaneko revealed that she was the leader of Hello Pro Kenshuusei.

On December 22nd, Kaneko Rie, Miyamoto Karin, Takagi Sayuki and Ogawa Rena participated in Cutie Land 7, where they sang "All I Want For Christmas Is You."

2013
On February 3, during the Bravo! concert in Fukuoka, it was announced that Kanazawa Tomoko, Takagi Sayuki, Otsuka Aina, Miyamoto Karin and Uemura Akari would be debuting in a new unit (Juice=Juice) alongside GREEN FIELDS' Miyazaki Yuka, The unit started off as an indies group aiming for a major debut.

On February 22, the official YouTube channel for Hello Pro Kenshuusei was opened.

On April 11, the first episode of Hello Pro Kenshuusei's new show, Hello! Pro Kenshuusei no Tadaima Kenshuuchuu!, was aired.

On May 19, at the Hello! Project Yaon Premium Live ~Soto Fest~ concert, the Kenshuusei announced and performed a new single titled Ten Made Nobore!, featuring Juice=Juice, the single was released on June 8, 2013.

On June 13, at a release event for Ten Made Nobore! at Ikebukuro Sunshine City, Juice=Juice announced their major debut single, Romance no Tochuu.

On July 5, it was announced that Otsuka Aina had withdrawn from both Hello Pro Kenshuusei and Juice=Juice due to issues with her contract and family. She had no graduation ceremony because of the withdrawal.

On August 30, auditions for "Temporary Egg" was announced, those who passed would train for half a year, then be promoted to Kenshuusei.

On October 5, the first episode of their variety show, ~Onedari Entame!~ Hapi★Pure, was aired.

On October 25, "Hello Pro Kenshuusei" was added to the UP-FRONT PROMOTION website under "Talent."

In November, the Juice=Juice members profiles were removed from the Hello Pro Kenshuusei website, bringing the member count down to 28.

On December 14, after five years of being in Hello Pro Kenshuusei, Kaneko Rie quit. However, she stayed until the 21st. Her departure brought the membership count down to 27.

2014
In January, Kenshuusei members had self-introduction and interview videos uploaded to their Hello! Pro Kenshuusei YouTube channel.

On May 4, it was announced that Kosuga Fuyuka had finished her training.

On September 1, it was revealed that Tanaka Karen and Oura Hirona had ended their training.

On September 30, Makino Maria and Haga Akane joined Morning Musume '14, alongside two other non-kenshuusei, as 12th generation members.

On October 4, Murota Mizuki, Sasaki Rikako and Aikawa Maho joined S/mileage as 3rd generation members.

On November 4, it was revealed that Tanabe Nanami and Yoshihashi Kurumi had ended their training.

On November 5, it was announced that Inaba Manaka and Yamaki Risa would be joining Country Girls, a 2014 reboot of Country Musume, alongside three other non-kenshuusei. The seven debuting Kenshuusei will still participate in the November / December Kenshuusei Recital.

On November 29, Hello Pro Kenshuusei released their first album ① Let's say "Hello!", it was available for purchase at the November/December Nama Tamago Show concerts, and it eventually had a general release on February 18, 2015.

On December 27, an audition for new members, ranging from 4th year elementary school students to 3rd year middle school students, was announced through De☆View. The audition was also looking for new Up-Front Kenshuusei members.

2015
On January 2, during the Hello! Project 2015 WINTER ~DANCE MODE!~ concert, a new Kenshuusei unit Kobushi Factory was announced. The unit consists of Hamaura Ayano, Taguchi Natsumi, Ogawa Rena, Nomura Minami, Wada Sakurako, Fujii Rio, Hirose Ayaka and Inoue Rei.

On February 26, it was revealed that Mikame Kana had ended her training.

On April 29, a new Kenshuusei unit Tsubaki Factory was announced. The unit consists of Ogata Risa, Yamagishi Riko, Niinuma Kisora, Tanimoto Ami, Kishimoto Yumeno, and Asakura Kiki.

On April 30, it was revealed that Saito Kana had ended her training.

On November 5, Kobushi Factory members profiles were removed from the Hello Pro Kenshuusei website. It was also announced that Funaki Musubu and Yanagawa Nanami would be joining Country Girls.

On November 6, it was revealed that Okamoto Honoka had ended her training.

2016
On March 24, it was revealed that Takemura Miu had ended her training.

On July 16, Kasahara Momona joined ANGERME as the sole 5th generation member, and the same day it was announced that a Hokkaido branch of Hello Pro Kenshuusei had been formed.

On July 28, Hashimoto Nagisa, Shimano Momoko, Yokogawa Yumei, and Nakano Rion's profiles were removed from the Kenshuusei website, indicating they have ended their training.

On August 13, Ono Mizuho, Onoda Saori, and Akiyama Mao joined Tsubaki Factory as new group members.

On December 12, Kaga Kaede and Yokoyama Reina joined Morning Musume as 13th generation members.

2017
On February 28, Tsubaki Factory member profiles were removed from the Hello Pro Kenshuusei page on the Hello! Project site.

On March 6, it was revealed that Yoshida Marie had ended her training.

On May 5, during the Hello! Project Kenshuusei Happyoukai 2017 ~Haru no Koukai Jitsuryoku Shindan Test~, the debut of Takase Kurumi and Kiyono Momohime in a new section focused on theater, Inoue Hikaru as the new leader of Hello Pro Kenshuusei, and the debut of Ichioka Reina, Dambara Ruru, and Kawamura Ayano in Hello! Project (either as a new unit or in a generational group) in the near future were announced.

On June 26, Dambara Ruru joined Juice=Juice as new group member, Kawamura Ayano joined ANGERME as new group member, and Ichioka Reina became leader of a New Group.

2018
On February 9, it was announced that Goto Sayaka had ended her training

On April 23, it was announced that Hashimoto Momoko had completed her training.

On May 29, it was announced that Inoue Hikaru had completed her training.

On June 9, during the Hello! Project Kenshuusei Happyoukai 2018 6gatsu ~Niji~ in Tokyo, it was announced that Shimakura Rika, Nishida Shiori, and Eguchi Saya were chosen to join the new group led by Ichioka Reina that would debut later in 2018. It was also announced that Maeda Kokoro, Yamazaki Yuhane, and Okamura Minami were selected to join the second new group which already includes Takase Kurumi and Kiyono Momohime and would debut later in 2018.

On July 14, the promoted member profiles were removed from the Hello Pro Kenshuusei page on the Hello! Project site.

On August 24, it was announced that Horie Kizuki and Kanatsu Mizuki had finished their training.

On November 1, it was announced that Noguchi Kurumi, Hibi Marina, and Doi Rena had ended their training.

2019
On January 16, it was revealed that Kodama Sakiko has ended her training.

On April 2, Kusunoki Mei's profile was removed from Hello Pro Kenshuusei's artist profile, indicating that she had left the program.

On June 14, Matsunaga Riai debuted as a member of Juice=Juice.

On July 3, Hashisako Rin debuted as a member of ANGERME.

On July 11, a unit within the program was announced consisting of a rotating line-up of members of Hello Pro Kenshuusei or Hello Pro Kenshuusei Hokkaido, simply called the Hello Pro Kenshuusei Unit. The unit was formed in order to check members' activities more closely as they aim to make their debut. They will perform at Hello! Project concerts like a major group so they can improve their skills. Depending the situation, members may be replaced once their trainee or unit activities have been checked. The starting members are Yonemura Kirara, Ishiguri Kanami, Kubota Nanami, Kanemitsu Ruru, and Saito Madoka.

On July 26, the list of members appearing in Hello! Project Kenshuusei Happyoukai 2019 9gatsu ~Kira~ was released, and it was announced that Ono Kotomi and Shutto Anna had both completed their training.

Discography
Albums=
 * Indies Albums
 * [2015.02.18] ① Let's say "Hello!"
 * [2018.05.06] Rainbow×2


 * -|Singles=
 * Indies Singles
 * [2012.09.23] Kanojo ni Naritai!!! - Miyamoto Karin, Tanabe Nanami, Hamaura Ayano, Taguchi Natsumi, Otsuka Aina
 * [2013.06.08] Ten Made Nobore! (Hello! Project Kenshuusei feat. Juice=Juice)
 * [2013.12.21] Oheso no Kuni Kara Konnichiwa / Ten Made Nobore!  (DVD single)


 * Soundtrack Singles
 * [2014.05.15] Karen na Gasshoudan - Tanabe Nanami, Hamaura Ayano, Murota Mizuki, Yamagishi Riko, Kaga Kaede, Sasaki Rikako, Yamaki Risa, Oura Hirona
 * [2016.12.07] Engeki Joshibu Musical "Nega Poji Poji" Original Soundtrack


 * -|Songs=
 * Digital Songs
 * [2017.06.02] Hello! Massara no Jibun
 * [2017.06.30] Isshakudama de Buppanase!
 * [2017.09.08] Arigatameiwaku Monogatari


 * Original Songs
 * [2019] Warui Hito (悪いヒト; Bad Person)


 * -|DVDs=
 * [2007.05.13] Dai 1kai Hello! Project Shinjin Kouen History of Hello Pro Egg (fanclub exclusive)
 * [2007.09.26] Dai 1kai Hello! Project Shinjin Kouen ~Saru no Koku~ / ~Tori no Koku~
 * [2007.11.23] Hello Pro Egg DVD PAMPHLET (fanclub exclusive)
 * [2008.11.24] 2008 Hello! Project Shinjin Kouen 9gatsu ~Shibakouen STEP!~
 * [2009.04.04] Hello Pro Egg DVD Magazine Vol.1  (only available at the 2009 April recital)
 * [2009.09.23] 2009 Hello! Project Shinjin Kouen 6gatsu ~Nakano STEP!~
 * [2009.12.24] Kyou wa Nan no Hi? Egg no Hi! DVD ~Synchro Quiz Hen~
 * [2009.12.24] Kyou wa Nan no Hi? Egg no Hi! DVD ~Game Hen~
 * [2010.03.27] Hello Pro Egg DVD Magazine Vol.2 (only available at the 2010 March recital)
 * [2010.11.28] Hello Pro Egg DVD Magazine Vol.3 (only available at the 2010 November recital)
 * [2013.03.31] Hello! Pro Kenshuusei DVD Magazine Vol.1
 * [2014.05.22] Hello Pro Kenshuusei Micchaku 2013nen Fuyu
 * [2014.08.27] Bokutachi Karen na Shounen Gasshoudan
 * [2018.10.17] Hello! Project Kenshuusei Happyoukai 2018 6gatsu ~Niji~

Theater



 * [2006] Edo Kara Chakushin!? ~Timeslip to Kengai!~
 * [2006] Hakujaden ~White Lovers~
 * [2007] Reverse! ~ Watashi no Karada Doko Desu ka?
 * [2008] Ojigi 30do On Stage
 * [2008] Berryz Koubou VS Berryz Koubou
 * [2009] Ojigi de Shape Up!
 * [2009] Shugo Chara!
 * [2010] Fashionable
 * [2010] Sanokuen Shoujo
 * [2010] Akuma no Tsubuyaki
 * [2010] Ima ga Itsuka ni Naru Mae ni
 * [2011] Reborn ~Inochi no Audition~
 * [2011] 1974 (Ikunayo)
 * [2012] STRONGER
 * [2013] Sakura no Hanataba
 * [2014] Bokutachi Karen na Shounen Gasshoudan
 * [2014] LILIUM -Lilium Shoujo Junketsu Kageki-
 * [2014] SMILE FANTASY!
 * [2014] Kurukuru to Shi to Shitto
 * [2015] TRIANGLE
 * [2016] Zoku 11nin Iru! Higashi no Chihei, Nishi no Towa
 * [2016] Mode
 * [2016] Nega Poji Poji
 * [2017] Bokutachi Karen na Shounen Gasshoudan (2017)
 * [2018] Pharaoh no Haka ~Hebi Ou Sneferu~
 * [2019] Harukanaru Toki no Naka de 6 Gaiden ~Tasogare no Kamen~

Movies

 * [2010] Gekijouban Hontou ni Atta Kowai Hanashi 3D
 * [2010] Hoshisuna no Shima no Chiisana Tenshi ~Mermaid Smile~

Dramas

 * [2012] Suugaku♥Joshi Gakuen

Anime

 * [2006-2009] Kirarin☆Revolution

Variety Shows

 * [2013] Hello Pro Kenshuusei no Tadaima Kenshuuchuu!
 * [2013-2014] ~Onedari Entame!~ Hapi★Pure

Hello Pro Kenshuusei Units

 * Tomoiki Ki wo Uetai (2005–2010)
 * THE Possible (2006–2007)
 * Shugo Chara Egg! (2008–2010)
 * S/mileage (2009–2010)
 * Juice=Juice (2013)
 * Kobushi Factory (2015)
 * Tsubaki Factory (2015-2017)
 * CHICA#TETSU (2017-2019)
 * Ame no Mori Kawa Umi (2017-2019)
 * Hello Pro Kenshuusei Unit (2019-present)

Acts featuring Former Eggs / Kenshuusei
Only acts under 

Former Acts

 * v-u-den (Okada Yui)
 * ℃-ute (Arihara Kanna)
 * THE Possible / Ciao Bella Cinquetti
 * Ongaku Gatas (Korenaga Miki, Sengoku Minami, Noto Arisa, Sawada Yuri, Muto Mika, Mano Erina)
 * MilkyWay  (Kitahara Sayaka, Kikkawa Yuu)
 * High-King (Maeda Yuuka)
 * Shin Minimoni
 * ZYX-α (Wada Ayaka, Ogawa Saki)
 * Aa! (Saho Akari)
 * HAPPY! STYLE  (Noto Arisa)
 * Lilpri
 * Oha Girl Maple  (Ogawa Saki)
 * Reborn Eleven (Sengoku Minami, Mori Saki, Fukumura Mizuki, Miyamoto Karin, Kudo Haruka)
 * StylipS (Noto Arisa)
 * Team Okai (all members except Okai Chisato)
 * Peaberry  (Wada Ayaka)
 * Harvest  (Takeuchi Akari)
 * HI-FIN  (Fukuda Kanon)
 * Jurin  (Miyamoto Karin)
 * Sato no Akari  (Katsuta Rina, Uemura Akari)
 * Triplet  (Takagi Sayuki, Kudo Haruka)
 * ODATOMO
 * Kamiishinaka Kana  (Kanazawa Tomoko)

Current Acts

 * Morning Musume (Linlin, Fukumura Mizuki, Kudo Haruka, Oda Sakura, Makino Maria, Haga Akane, Kaga Kaede, Yokoyama Reina)
 * Mano Erina (soloist)
 * ANGERME (Wada Ayaka, Maeda Yuuka, Fukuda Kanon, Ogawa Saki, Takeuchi Akari, Katsuta Rina, Kosuga Fuyuka, Murota Mizuki, Aikawa Maho, Sasaki Rikako, Kasahara Momona, Kawamura Ayano, Funaki Musubu, Hashisako Rin)
 * Kikkawa Yuu (Soloist)
 * Kitahara Sayaka (Soloist)
 * Up Up Girls (Kari) (Sengoku Minami, Furukawa Konatsu, Mori Saki, Sato Ayano, Saho Akari, Sekine Azusa, Arai Manami)
 * Juice=Juice (Kanazawa Tomoko, Takagi Sayuki, Otsuka Aina, Miyamoto Karin, Uemura Akari, Dambara Ruru, Yanagawa Nanami, Inaba Manaka, Matsunaga Riai)
 * Hello! Project Station Dance Club  (Makino Maria, Kaga Kaede, Takeuchi Akari, Sasaki Rikako, Murota Mizuki, Funaki Musubu, Miyamoto Karin, Inaba Manaka, Hamaura Ayano, Yamagishi Riko, Akiyama Mao)
 * Country Girls (Yamaki Risa, Inaba Manaka, Yanagawa Nanami, Funaki Musubu)
 * Kobushi Factory
 * Tsubaki Factory
 * UP-FRONT esports club  (Furukawa Konatsu, Arai Manami, Yokoyama Reina)
 * Minis?  (Funaki Musubu)
 * BEYOOOOONDS (Ichioka Reina, Shimakura Rika, Nishida Shiori, Eguchi Saya, Takase Kurumi, Maeda Kokoro, Yamazaki Yuhane, Okamura Minami, Kiyono Momohime)
 * College Cosmos  (Yamaki Risa)

Trivia

 * When Hello Pro Egg changed its name to Hello Pro Kenshuusei, it was also established that each member had to pay a monthly fee of 10,000 yen (about $100) for their lessons.
 * 'HPK' is an acronym for the Kenshuusei system, while 'KSS' is an acronym for the Kenshuusei members.
 * The oldest member in the current lineup is Saito Madoka at the age of 21, while the youngest is Matsubara Yulia at the age of 16.
 * Wada Ayaka is the first member of Hello Pro Kenshuusei to become the leader of a main Hello! Project group and of Hello! Project.
 * Fukumura Mizuki is the first former Hello Pro Kenshuusei member to become sub-leader and leader of Morning Musume. She is also the first former Hello Pro Kenshuusei member to become sub-leader of Hello! Project.
 * Linlin was the first and only international student Hello Pro Kenshuusei has ever had. During her time as an egg, her name was never released and she was known as poniko (ポニ子; ponytail girl). She was also the only member to not be in a generation.
 * Contrary to popular belief, Jang Da Yeon was never a member of Hello Pro Kenshuusei. She was a member of Hello Pro Korea Kenshuusei.
 * In the past, Kenshuusei who auditioned for Morning Musume or ANGERME were automatically passed to the third round.
 * The oldest member to join Hello Pro Kenshuusei was Hirano Tomomi at 24 years old.
 * The tallest member in Hello Pro Kenshuusei is Yamada Ichigo at 170cm.
 * 2005 was the only year in which no new members were added.
 * 22nd generation members Hashimoto Nagisa, Horie Kizuki, Ogata Risa, Shimano Momoko, Hirose Ayaka and Inoue Rei were all initially from NICE GIRL Project! Kenshuusei.
 * Ogata Risa, Hirose Ayaka and Inoue Rei were the only members to debut. Hirose Ayaka and Inoue Rei ended up debuting in Kobushi Factory in January of 2015. Ogata Risa debuted with Tsubaki Factory in April of 2015.
 * Hashimoto Nagisa and Shimano Momoko both left the program in July of 2016, while Horie Kizuki left the program in August of 2018.
 * Sasaki Rikako, Inaba Manaka, Takemura Miu, Onoda Saori, Horie Kizuki, Takase Kurumi, Kodama Sakiko, Kiyono Momohime, Kawamura Ayano, Okamura Minami, Yamada Ichigo, Nakayama Natsume, Goto Sayaka, Tamenaga Shion and Kubota Nanami were previously from idol groups outside of Hello! Project.
 * As of November 5, 2015, with the removal of Kobushi Factory from the Kenshuusei website, there are no current members to have been trainees back when Hello Pro Kenshuusei was named Hello Pro Egg.
 * The 17th generation is the first and currently the only generation with more than 2 members to have every member debut in Hello! Project (Juice=Juice  has  Kanazawa Tomoko, Morning Musume has Makino Maria and Kaga Kaede, Kobushi Factory has Wada Sakurako, Tsubaki Factory has Kishimoto Yumeno, and CHICA TETSU has Ichioka Reina).
 * ANGERME, Country Girls and Ame no Mori Kawa Umi (not counting it as part of BEYOOOOONDS) are the only groups that do not have a member from the 17th generation as part of their rosters.
 * Kosuga Fuyuka is the first, and currently only member to go from being a full Hello! Project member to be "downgraded" to a Hello Pro Kenshuusei member (excluding Inaba Manaka who was appointed as mentor to Hello Pro Kenshuusei Hokkaido).
 * Every main group (as of 2017) has at least one former member of Hello! Pro Kenshuusei in their roster.
 * Up until, and including, the 27th gen, every generation of Hello Pro Kenshuusei has had at least one member debut into Hello! Project except 3rd gen, 6th gen, and 9th gen.