Sakura Gakuin (さくら学院) are an idol group under the Amuse agency whose music and activities are based on the Japanese school system. Just like in Japanese schools, the members of Sakura Gakuin wear a special uniform. The Japanese school year ends at the end of March, and this is when Sakura Gakuin release their albums. Singles are released at various times throughout the year. Also just like Japanese schools, Sakura Gakuin have “school clubs” with a variety of themes. When a member of Sakura Gakuin graduates from ninth grade in real life, she also graduates from the group.
Sakura Gakuin was formed in April 2010 with eight members, with Muto Ayami as the Student Council President (i.e., the leader).
Mizuno Yui and Kikuchi Moa joined in July 2010, completing the lineup which debuted at TOKYO IDOL FESTIVAL 2010 (August 7 and 8, 2010).
In July 2011, Taguchi Hana and Isono Rinon joined giving Sakura Gakuin twelve members.
At the end of the Japanese school year in March 2012, the three eldest members, Muto Ayami, Miyoshi Ayaka and Matsui Airi, graduated.
In May 2012, Notsu Yunano, Sugimoto Mariri, and Ooga Saki transferred in, making the lineup twelve members again, and Nakamoto Suzuka became the new Student Council President.
At the end of March 2013, Nakamoto Suzuka graduated, as expected, but Sugimoto Mariri also graduated in order to focus on her modeling career.
In May 2013, Shirai Saki and Yamaide Aiko transferred in, and Horiuchi Marina became the third Student Council President.
At the end of March 2014 Horiuchi Marina, Iida Raura, Sugisaki Nene and Sato Hinata graduated.
In May 2014 Kurashima Sara and Okada Megumi transferred in, and Kikuchi Moa became the fourth Student Council President.
At the end of March 2015 Kikuchi Moa, Mizuno Yui, Taguchi Hana, and Notsu Yunano graduated.
In May 2015 Kurosawa Mirena, Okazaki Momoko, Asou Maaya, Hidaka Marin, Fujihira Kano, and Yoshida Soyoka transferred in, and Isono Rinon became the fifth Student Council President.
At the end of March 2016 Isono Rinon, Shirai Saki and Ooga Saki graduated.
In May 2016 Shintani Yuzumi, Aritomo Tsugumi and Mori Momoe transferred in, and Kurashima Sara became the sixth Student Council President.
At the end of March 2017 Kurashima Sara and Kurosawa Mirena graduated.
In May 2017 Tanaka Miku and Yagi Miki transferred in, and Yamaide Aiko became the seventh Student Council President.
At the end of March 2018 Yamaide Aiko, Okada Megumi and Okazaki Momoko graduated.
In May 2018 Shiratori Sana, Nonaka Kokona and Nozaki Yume transferred in, and Shintani Yuzumi became the 8th Student Council President.
At the end of March 2019 Shintani Yuzumi, Hidaka Marin and Asou Maaya graduated.
In May 2019 Sato Neo, Todaka Miko and Kimura Sakia transferred in, and Fujihira Kano became the 9th Student Council President.
Aritomo Tsugumi (有友 緒心) - born on September 7th, 2004
Mori Momoe (森 萌々穂) - born on December 8th, 2004
Tanaka Miku (田中 美空) - born on June 18th, 2006
Yagi Miki (八木 美樹) - born on December 11th, 2006
Sana Shiratori (白鳥 沙南) - born on June 20th, 2005
Kokona Nonaka (野中 ここな) - born on January 28th, 2006
Yume Nozaki (野崎 結愛) - born on November 15th, 2007 Yume's Instagram Account (shared with her sister Jyuna)
Neo Sato (佐藤 愛桜) - born on June 18th, 2006
Miko Todaka (戸高 美湖) - born on August 14th, 2006 Miko's Twitter (probably going to get deleted soon)
Sakia Kimura (木村 咲愛) - born on February 20th, 2009
Muto Ayami (武藤彩未) - born on April 29, 1996 Ayami's Twitter
Miyoshi Ayaka (三吉彩花) - born on June 18, 1996 Ayaka's Blog | Ayaka's Instagram
Matsui Airi(松井愛莉) - born on December 26, 1996 Airi's Blog | Airi's Twitter
Nakamoto Suzuka (中元すず香) - born December 20, 1997
Sugimoto Mariri (杉本愛莉鈴) - born on August 4, 2000 Mariri's Twitter
Iida Raura (飯田來麗) - born on April 9, 1998 Raura's Twitter | Raura's Instagram | Raura's new Instagram because she forgot her old login data
Horiuchi Marina(堀内まり菜) - born on April 29, 1998 Marina's Twitter
Sugisaki Nene (杉崎寧々) - born on May 8, 1998
Sato Hinata (佐藤日向) - born on December 23, 1998 Hinata's Twitter
Mizuno Yui (水野由結) - born on June 20, 1999
Kikuchi Moa (菊地最愛) - born on July 4, 1999
Taguchi Hana (田口華) - born on March 4, 2000 Hana's Twitter
Notsu Yunano (野津友那乃) - born on December 14, 1999 (changed her name to Honjo Yunano (本条 友奈埜) on May 25th 2015)
Yunano's Instagram (now deleted)
Isono Rinon (磯野莉音) - born on November 16, 2000
Ooga Saki (大賀咲希) - born on April 11, 2000
Shirai Saki (白井沙樹) - born on September 28, 2000
Kurashima Sara (倉島颯良) - born on February 24, 2002
Kurosawa Mirena (黒澤美澪奈) - born on May 22, 2001 Mirena's Twitter
Okada Megumi (岡田愛) - born on April 4, 2002 Megumi's Twitter
Okazaki Momoko (岡崎百々子) - born on March 3, 2003
Asou Maaya (麻生真彩) - born on November 4, 2003
Hidaka Marin (日髙麻鈴) - born on December 1, 2003
Shintani Yuzumi (新谷 ゆづみ) - born on July 20th, 2003
Twinkestars (the Baton Club)
SCOOPERS (the Newspaper Club)
BABYMETAL (the Heavy Music Club)
Minipati (the Cooking Club)
Sleepiece (the Go Home Club)
Pastel Wind (the Tennis Club)
Kagaku Kyuumei Kikou LOGICA? (the Science Club)
Koubaibu (Purchasing Club)
Pro Wrestling Circle (Wrestling Club)