Houkago Princess

 (放課後プリンセス; After School Princess) is a Japanese idol group formed in 2011 with members from the agency Office COLORS.

They are managed by FORZA RECORDS.

Members
Current= Former= Former Trainees=
 * Morikawa Yuu (森川優羽; ) - (Gen 12) (Leader)
 * Mizuno Ami (水野青海; ) - (Gen 13)
 * Togawa Yuumi (戸川 優海; ) - (Gen 13)
 * Hanasaki Karin (花咲 果林; ) - (Gen 13)
 * Masaki Riko (真崎 莉子; ) - (Gen 13)
 * Hagi Yurika (萩ユリカ) (Gen 1) (Founding Member; Withdrew on May 18, 2011)
 * Yamaguchi Mai (山口舞) (Gen 1) (Founding Member; Graduated on December 10, 2011)
 * Kishitani Yuki (岸谷優希) (Gen 1) (Founding Member; Graduated on May 6, 2012)
 * Yumeka (夢夏) (Gen 1) (Founding Member; Graduated on May 6, 2012)
 * Miyashita Mayuka (宮下まゆか) (Gen 1/2.5) (Founding Member; Graduated May 6, 2012) (Later returned)
 * Kobayashi Rena (小林玲奈) (Gen 2) (Joined November, 2011; Dismissed March, 2013)
 * Nagafuji Aoi (永藤葵) (Gen 2) (Joined November, 2011; Graduated June 30, 2013)
 * Chiba Sakino (千葉さきの) (Gen 1) (Founding Member; Graduated July 21, 2013)
 * Noda Hitomi (野田仁美) (Gen 1) (Founding Member; Dismissed September 10, 2013)
 * Shiraishi Rika (白石りか) (Gen 3) (Joined June 2, 2012; Graduated December 7, 2013)
 * Yamakawa Risa (山川莉砂) (Gen 4) (Joined February, 2013; Dismissed January 8, 2014)
 * Hayamizu Rin (2) (早水凜) (Gen 4) (Joined February, 2013; Graduated May 22, 2014)
 * Sakuragi Nene (桜木寧々) (Gen 3) (Joined June 2, 2012; Graduated February 11, 2015)
 * Ayase Miho (綾瀬美穂) (Gen 3) (Joined June 2, 2012; Graduated March 27, 2016)
 * Miyashita Mayuka (宮下まゆか) (Gen 1/2.5) (rejoined March 24, 2013, Graduated August 15, 2016)
 * Nagasawa Marina (長澤茉里奈) (Gen 5/7) (rejoined February 18, 2015, Withdrew December 14, 2016)
 * Kojima Mayumi (小島まゆみ) (Gen 7) (Joined September 22, 2015; Graduated August 5, 2018)
 * Shirosaki Himari (城崎ひまり) (Gen 6) (Joined June 21, 2014; Graduated August 12, 2018)
 * Odagiri Nana (小田桐奈々) (Gen 1) (Founding Member; Graduated October 14, 2018)
 * Yamaguchi Miran (山口みらん) (Gen 3) (Joined June 2, 2012; Graduated October 14, 2018)
 * Kizuki Saori (木月沙織) (Gen 4) (Joined December 2, 2012; Graduated October 14, 2018)
 * Mizuki Aoi (水希蒼) (Gen 10) (Joined March 31, 2019; Left November 30, 2019)
 * Yukino Yuria (雪乃ゆりあ) (Gen 8) (Joined July 12, 2018; Graduated January 29, 2020)
 * Yamamoto Natsumi (山本夏望) (Gen 9) (Joined October 8, 2018; Graduated January 29, 2020)
 * Takano Hiyori (高野日和) (Gen 9) (Joined December 23, 2018; Graduated January 29, 2020)
 * Tani Nobara (谷のばら) (Gen 9) (Joined October 8, 2018; Graduated March 31, 2020)
 * Maika (舞花) (Gen 6) (Joined May 4, 2014; Graduated March 18, 2021)
 * Michishige Saho (道重佐保) (Gen 6) (Joined October 12, 2013; Graduated March 12, 2022) (Promoted August 20, 2015; Demoted May 8, 2017; Promoted July 12, 2018)
 * Sekine Sasara (関根ささら) (Gen 7) (Former Leader) (Joined September 22, 2016; Graduated March 12, 2022)
 * Kohinata Nanase (小日向ななせ) (Gen 9) (Joined October 8, 2018; Graduated March 12, 2022)
 * Sawada Momoka (澤田桃佳) (Gen 10) (Joined April 15, 2019; Graduated March 12, 2022)
 * Nishimiya Airi (西宮愛理) - (Gen 11) (Joined March 18, 2021; Graduated March 12, 2022)
 * Toyoda Serina (豊田瀬里奈) (Joined October 2011, Graduated November 2011)
 * Kaji Nana (梶奈々) (Joined October 2011, Graduated November 2011)
 * Shirahoshi Chiaki (白星ちあき) (Gen 3) (Joined June 2, 2012; Dismissed October 13, 2012)
 * Arawakawa Hana / Hayamizu Rin (1) (荒川花しす / 早見凜) (Gen 4) (Joined January 6, 2013; Left January 7-8, 2013)
 * Matsumoto Ria (松本梨愛) (Gen 4) (Joined December 2, 2012; Dismissed April 6, 2013)
 * Asakura Erina (朝倉恵璃菜) (Gen 3) (Joined June 2, 2012; Dismissed April 22, 2013)
 * Suzukawa Kanari (鈴川かなり) (Gen 5) (Joined May 5, 2013; Withdrew in July, 2013)
 * Momose Fuka (百瀬楓花) (Gen 3) (Joined June 2, 2012; Withdrew June 2, 2013)
 * Aiuchi Kohana (相内今華) (Gen 4) (Joined December 2, 2012; Withdrew July 21, 2013)
 * Kawamura Shiori (河村しおり) (Gen 6) (Joined February 2, 2014; Withdrew February 15, 2014)
 * Sakurai Riho (櫻井りほ) (Gen 5) (Joined May 5, 2013; Dismissed January 27, 2014 - officially announced May 22, 2014)
 * Fukuhara Kyoka (福原杏夏) (Gen 5) (Joined May 5, 2013; Graduated February 28, 2014)
 * Nagasawa Marina (長澤茉里奈) (Gen 5/7) (Joined May 5, 2013; Dismissed August, 2014) (Later returned)
 * Haruno Akane (春野茜) (Joined April 11, 2015; Withdrew July 6, 2015)
 * Kamiya Airi (神谷愛理) (Joined March 7, 2015; Graduated March 20, 2016)
 * Izumi Sakura (泉美 桜) (Joined June 9, 2015; Graduated March 20, 2016)
 * Makihara Yuyu (牧原ゆゆ) (Joined March 1, 2016; Graduated May 1, 2016)
 * Ota Nozomi (太田希望) (Joined January 1, 2017; Fired February 25, 2017)
 * Horii Nina (堀井仁菜) (Joined January 17, 2016; Graduated June 3, 2017)
 * Tanaka Asami (田中あさみ) (Joined January 1, 2017; Graduated June 3, 2017)
 * Haruyama Muta (晴山むた) (Joined September 4, 2017; Fired September 17, 2017)
 * Yuzuki Nene (結月ねね) (Joined August 26, 2017; Withdrew November 13, 2017)
 * Kirisawa Ririsa (桐澤怜々紗) (Joined August 26, 2017; Dismissed December 1, 2017)
 * Akimoto Natsuko (秋元なつこ) (Joined January 2018; Withdrew March 10, 2018)
 * Serizawa Ayame (芹沢あやめ) (Joined August 26, 2017; Withdrew March 22, 2018)
 * Michishige Rio (道重利緒) (Joined August 26, 2017; Withdrew April 2018)
 * Takamiya Yuri (高宮悠里) (Joined August 26, 2017; Withdrew May 13, 2018)
 * Suzuki Ai (鈴木亜依) (Joined August 26, 2017; Withdrew May 12, 2018)
 * Nakano Yui (中野唯) (Joined August 26, 2017; Withdrew May 12, 2018)
 * Tobe Marina (戸部まりな) (Joined May 2018; Withdrew September 29, 2018)
 * Sunohara Yuka (春原優花) (Joined October 15, 2018; Dismissed November 24, 2018)
 * Masuda Hana (増田花) (Joined August 26, 2017; Graduated November 29, 2018)
 * Shirakawa Ai (白川愛) (Joined August 26, 2017; Withdrew December 31, 2018)
 * Kawanishi Fuyuka (川西冬華) (Joined August 26, 2017; Graduated January 31, 2019)
 * Kusunoki Rea (楠木れあ) (Joined August 26, 2017; Withdrew February 27, 2019)
 * Hanamura Nami (花村なみ) (Joined August 26, 2017; Withdrew February 27, 2019)
 * Kansai Erina (閑歳絵里菜) (Joined August 26, 2017; Graduated March 30, 2018) (Returned January 26, 2019; Withdrew May 31, 2019)
 * Ozawa Ruru (小沢るる) (Joined March 23, 2019; Withdrew May 31, 2019)
 * Aoki Ririka (蒼木りりか) (Joined March 23, 2019; Withdrew June 26, 2019)
 * Himekawa Arisa (姫川ありさ) (Joined September 4, 2017; Graduated July 31, 2019)
 * Morishita Rina (森下里奈) (Joined December 20, 2016; Dismissed January 16, 2017) (Returned September 4, 2017; Graduated July 31, 2019)
 * Yoshinaga Yuriko (吉永由莉子) (Joined April 2020; Withdrew June 18, 2020)
 * Sato Sumire (佐藤純恋) (Joined June 5, 2019; Dismissed June 28, 2020)
 * Tsurumaki Seina (鶴巻星奈) (Joined Nov 27, 2020; Withdrew April 30, 2021)
 * Nakano Rion (仲野りおん) (Joined March 13, 2021; Withdrew November 23, 2021)
 * Yoshioka Maki (吉岡真希) - Cadet (Joined July 21, 2021; Graduated March 9, 2022)
 * Kuroki Ayaka (黒木 彩架) - Apprentice (Joined February 2, 2022; Withdrew June 01, 2022)

Discography
Albums=
 * 1) [2017.03.22] My Princess
 * 2) [2020.01.29] My Princess II
 * 3) [2022.08.17] My Princess III ~Mirai no Kane wo Narase~ (My Princess III ~未来の鐘を鳴らせ~)

Best Albums

 * 1) [2017.03.22] Indies Best ~Memories~ (インディーズベスト～Memories～)
 * 2) [2021.01.20] ~10th Anniversary~ Princess Assemble

Mini Albums
Singles=
 * 1) [2015.08.19] Seifuku Cinderella (制服シンデレラ)

Indies

 * 1) [2011.08.03] Houkago Princess ~Oshiete Kudasai!~ (放課後プリンセス 〜おしえてください！〜) (Indies)
 * 2) [2011.12.24] Juliet ~Kimi wo Suki na 100 no Riyuu~ (ジュリエット 〜君を好きな100の理由〜) (Indies)
 * 3) [2011.12.24] Uchuu Ichi no Christmas (宇宙一のクリスマス) (Indies)
 * 4) [2012.10.07] Kojiki Shika! (古事記しか！) (Indies)
 * 5) [2012.12.02] Housou-bu Please (放送部プリーズ) (Indies)
 * 6) [2012.12.21] Uchuu Ichi no Christmas (2012-2013 Version) (宇宙一のクリスマス(2012-2013 version)) (Indies)
 * 7) [2013.05.15] Juliet ~Kimi wo Suki na 100 no Riyuu~ (2013 Version) (ジュリエット 〜君を好きな100の理由〜(2013 version)) (Indies)
 * 8) [2013.11.27] Samu wa Fuyui! (サムはフユい！) (Indies)
 * 9) [2014.07.08] Juliet ~Kimi wo Suki na 100 no Riyuu~ (2014 Version) (ジュリエット 〜君を好きな100の理由〜(2014 version)) (Indies)
 * 10) [2014.09.23] Manatsu no Yoru no Yume (真夏の夜の夢) (Indies)

Major

 * Despite going back to indies they still label singles following major numbers
 * 1) [2015.10.28] Kiete, Shirayukihime (消えて、白雪姫)
 * 2) [2016.02.17] Junpaku Antoinette (純白アントワネット)
 * 3) [2016.06.29] Seishun Mermaid (青春マーメイド)
 * 4) [2016.10.12] Himitsu no Tiara to Gelato (秘密のティアラとジェラート)
 * 5) [2017.02.15] Lychee Red no Unmei (ライチレッドの運命)
 * 6) [2017.07.01] Sayonara Dualina (さよならデュアリーナ)
 * 7) [2017.12.20] Abrakatab Luv! (アブラカタブLuv!) (Indies)
 * 8) [2018.10.10] Kaguya ni Negai wo (輝夜に願いを) (Indies)
 * 9) [2019.07.10] Shin Jidai Princess / Princess no Teigi (新時代プリンセス / プリンセスの定義) (Indies)
 * 10) [2020.07.29] Shakunetsu no Mystery Eye / Zessei Cleopatra (灼熱のミステリーアイ/絶世クレオパトラ) (Indies)
 * 11) [2021.09.15] Psyllium no Shoumei (サイリウムの証明) (Indies)
 * 12) [2023.06.28] Hamigaki Lady (歯みがきレイディ) (Indies)

Digital Singles
Music Card= Video Releases=
 * 1) [2013.08.13] Atsu wa Natsui
 * 2) [2021.01.20] ~10th Anniversary~ Princess Assemble (Partial ver.)
 * 1) [2018.12.12] Uchuu Ichi no Christmas (2018 ver.) (宇宙一のクリスマス(2018 version))
 * 2) [2019.11.22] GoMyWay (Miyashita Maika and Sekine Sasara)
 * 3) [2022.12.14] Winter Princess
 * 1) [2012.01.26] Houkago Princess prologue-DVD ~Houpri ga Uchuu Ichi Sukidayo (Emi)~ (放課後プリンセス prologue-DVD ~放プリが宇宙一好きだよ(笑)~)
 * 2) [2014.04.27] Houkago Princess LIVE@Shibuya O-EAST ~Seito Kaicho. Odagiri Nana seitan oneman 2014~
 * 3) [2015.02.23] Houpri LIVE Lesson 1 ~live-live-lived~
 * 4) [2016.12.21] Houkago Princess Music Clips 2015-2016
 * 5) [2018.03.31] Houkago Princess no! ~Kyo wa Tokubetsu❤️~ (放課後プリンセスの！〜今日はトクベツ❤️〜
 * 6) [2019.02.13] Houkago Princess LIVE2018 ~Princess Destiny~