The group was formed in search of a new type of idol to replace the present image of "idol (アイドル) = guuzou (偶像)"—guuzou being the Japanese word for "idol" which has the connotation of religious or cult-like worship. Therefore College Cosmos did not have the unspoken "love ban" rule. The members balanced work and their studies with the aim of becoming known as an intellectual group of idols.
On May 31, 2020, the group suspended activities, and all current members graduated from the group.
- Main article: College Cosmos Members
School years are from the time the group suspended its activities.
- Akizuki Kana (秋月香七) 4th Year at Keio University, Faculty of Letters
- Suga Marin (菅真鈴) Graduate of Kokogakuin University, Faculty of Economics
- Ito Ayaka (伊藤彩華) 4th Year at Rikkyo University, College of Intercultural Communication
- Yukishima Momoha (雪嶋桃葉) 4th Year at Seijo University, Faculty of Arts and Literature
- Gunji Nao (郡司奈桜) 4th Year at Nihon University, College of Art
- Natsuki (菜月) 4th Year at Japan Women's College of Physical Education, Faculty of Physical Education
School years are from the time the members left or graduated from College Cosmos.
- Nitadori Megumi (似鳥めぐみ) 2nd Year at Keio University, Faculty of Letters (left January 21, 2019)
- Wakita Mana (脇田茉奈) Graduate of Tokyo University of Science, School of Management (graduated March 31, 2019)
- Funada Miko (舩田美子) Graduate of Aoyama Gakuin University, College of Literature (graduated March 31, 2019)
- Hashimoto Sana (橋本紗奈) 4th Year at Chuo University, Faculty of Economics (graduated June 30, 2019)
- Yamaki Risa (山木梨沙) Country Girls member (2015–2019) / 4th Year at Keio University, Faculty of Business and Commerce (graduated October 31, 2019)
- Wakita Rina (脇田璃奈) 3rd Year at Tokyo University of Science, Department of Business Economics (graduated October 31, 2019)
- Ito Mai (伊藤舞) Graduate of Tamagawa University, Department of Liberal Arts (graduated October 31, 2019)
- Aya Graduate of Rissho University, Faculty of Economics (graduated October 31, 2019)
- Hiraga Sakino (平賀咲乃) Graduate of Seisen University, Department of Japanese Language and Literature (graduated October 31, 2019)
- Sakamoto Misaki (坂本美咲) Graduate of Atomi University, Faculty of Letters (graduated October 31, 2019)
- Watanabe Marin (渡辺磨玲) Graduate of Kokushikan University, Faculty of Political Science and Economics (graduated October 31, 2019)
- Fukusawa Kyoka (深澤京花) Graduate of Senzoku Gakuen, College of Music (graduated October 31, 2019)
- Niinomi Rina (新家利奈) Graduate of Musashino University, Faculty of Human Sciences (graduated October 31, 2019)
- Okamoto Mayuko (岡本真由子) Graduate of Waseda University, School of Human Sciences (graduated October 31, 2019)
- Aono Natsuki (蒼乃菜月) Graduate of Keio University, Faculty of Letters (graduated October 31, 2019)
- Nakajima Nana (中島菜々) 4th Year at Tokyo University of Agriculture, Faculty of Applied Bio-Science (graduated December 13, 2019)
- Matsui Mari (松井まり) Graduate of Chuo University, Faculty of Law (graduated March 31, 2020)
- Tsushima Haruka (對馬桜花) 4th Year at Rikkyo University, College of Arts (graduated March 31, 2020)
- Matsuoka Motoka (松岡資佳) Graduate of Jissen University, Faculty of Humanities and Social Sciences (graduated March 31, 2020)
On October 3, it was announced that Space Craft Group and UP-FRONT GROUP had decided to start a joint idol group named College Cosmos that consists of 25 girls attending university. Among the founding members was Country Girls' Yamaki Risa, who was a third year student in Keio University's Faculty of Business and Commerce and would participate alongside her Hello! Project activities. It was also decided that the group would make their CD debut in spring 2019, and on the same day of the announcement, the track "Kotoba no Mizu wo Roka Shitai" was pre-released for digital download.
At the press conference held for the formation of the group, it was announced that Yamaki would be double centers with Matsui Mari who is a fourth year student in Chuo University's Faculty of Law.
On October 20 and 21, College Cosmos performed as the opening act for Hello! Project 20th Anniversary!! Hello! Project Hallo! Fes 2018 and also participated in the SATOYAMA & SATOUMI with Nyaozane Matsuri in Kumagaya.
From January 2 to January 13, the group performed as the opening act for the Hello! Project 20th Anniversary!! Hello! Project 2019 WINTER concert tour. Nitadori Megumi was unable to participate in the concerts due to "poor health", and it was later announced on January 21 that she decided to withdraw from College Cosmos to treat an illness.
On March 6, College Cosmos released their debut single "Yume wa Ijiwaru / Kotoba no Mizu wo Roka Shitai / Kigou Nanka ja nai Watashitachi wa".
On March 28, it was announced that Funada Miko and Wakita Mana would be graduating from College Cosmos, in accordance with their graduations from university, on March 31 after Hello! Project 20th Anniversary!! Hello! Project Hina Fes 2019, where the group performed as the opening act for all four shows. Their individual College Cosmos Twitter and Instagram accounts would close on the same day. Both Funada and Wakita released their final messages through the College Cosmos website on their graduation day.
On May 15, the official fanclub opened. Fanclub members could submit names for the fanclub from May 18 to May 25. The winning name "College Cosmos Circle" was publicly announced at the College Cosmos Open Campus vol.1 event on May 26, and "Cosmos Mate" was also decided as the nickname for fans.
On June 30, Hashimoto Sana suddenly graduated from the group as she had decided to challenge more things in her university life.
On August 4, College Cosmos performed at TOKYO IDOL FESTIVAL 2019 on the SMILE GARDEN stage and the FESTIVAL STAGE.
On September 1, it was announced that the nine members who graduated from university back in March would also graduate from College Cosmos at the end of October, and new active university students would join the group to replace them. As a result, the second single would be the last for Ito Mai, Aya, Hiraga Sakino, Sakamoto Misaki, Watanabe Marin, Fukusawa Kyoka, Niinomi Rina, Okamoto Mayuko, and Aono Natsuki.
On October 9, College Cosmos released their second single "Shiawase no Arika wa Dochira Desu ka / Watashi Kakumei".
On October 18, it was announced that Yamaki Risa would graduate from College Cosmos, and later on retire from the entertainment industry in accordance with Country Girls' suspension of activities on December 26.
On October 24, it was announced that Wakita Rina had decided to also graduate from the group on October 31 in order to focus on her studies.
On October 31, College Cosmos held a mini live and handshake event at LaQua Garden Stage to commemorate the release of "Shiawase no Arika wa Dochira Desu ka / Watashi Kakumei". Entry into the handshake event required a ticket found in the limited editions of the single, but entry into the mini live was free. This mini live also served as the graduation concert for Yamaki Risa, Wakita Rina, and the nine members who graduated from university back in March.
On December 16, it was announced that Nakajima Nana was employed and graduated from College Cosmos on December 13 as a result.
On February 10, it was announced that Matsuoka Motoka, who found employment, and Tsushima Haruka, who decided to dedicate her time to studying, would both be graduating from the group on March 31.
On March 13, it was announced that Matsui Mari would graduate from College Cosmos on March 31.
On May 15, it was announced that College Cosmos would be ending activities at the end of the month and all of the current members would graduate. This was decided as a result of discussions regarding the coronavirus pandemic, and it will be announced in the future when the group will reboot with new members.
On May 30 and 31, the remaining six members of College Cosmos held a remote talk in commemoration of their collective graduation from the group. In accordance with stay at home orders due to the coronavirus pandemic, each of the members attended the talk remotely from the safety of their individual homes.
Group Name Origin
The second part of the group's name, "Cosmos", was chosen for two different meanings:
- An ordered and harmonious universe.
- The cosmos flower, called akizakura (秋桜) in Japanese, which in hanakotoba (flower language) means "the true heart of a maiden".
- [2019.03.06] Yume wa Ijiwaru / Kotoba no Mizu wo Roka Shitai / Kigou Nanka ja nai Watashitachi wa
- [2019.10.09] Shiawase no Arika wa Dochira Desu ka / Watashi Kakumei
- Digital Songs
- [2018.10.03] Kotoba no Mizu wo Roka Shitai
Concerts & Events
Concerts Participated In
- [2018.10.20~10.21] Hello! Project 20th Anniversary!! Hello! Project Hallo! Fes 2018 (opening act)
- [2018.01.02~01.13] Hello! Project 20th Anniversary!! Hello! Project 2019 WINTER (opening act)
- [2019.03.30~03.31] Hello! Project 20th Anniversary!! Hello! Project Hina Fes 2019 (opening act)
- [2019.08.24~09.01] Hello! Project 2019 SUMMER (opening act)
Events Participated In
- [2018.10.20~10.21] SATOYAMA & SATOUMI with Nyaozane Matsuri in Kumagaya
- [2019-2020] College Cosmos Semi (カレッジ・コスモス ゼミ; College Cosmos Seminar)