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
- Akizuki Kana (秋月香七) Keio University, Faculty of Letters
- Suga Marin (菅真鈴) Kokogakuin University, Faculty of Economics
- Ito Ayaka (伊藤彩華) Rikkyo University, College of Intercultural Communication
- Yukishima Momoha (雪嶋桃葉) Seijo University, Faculty of Arts and Literature
- Gunji Nao (郡司奈桜) Nihon University, College of Art
- Natsuki (菜月) Japan Women's College of Physical Education, Faculty of Physical Education
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 COVID-19 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 COVID-19 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)
- Aside from Country Girls member Yamaki Risa, the other 24 members of College Cosmos were models under Space Craft Group as part of the female college student section CampusQueen, which was a group of Miss Contest beauty pageant contestants from various universities.
- Aside from Country Girls member Yamaki Risa, two other College Cosmos members also have had brief experience as idols. Suga Marin had been a local idol as a member of PEACEFUL from 2011 to 2012, while Funada Miko had been a part of the idol trainee unit seeDream briefly in 2016 going by the name Kawase Miko (川瀬美子).
- Post-suspension, Natsuki was one of the few members of College Cosmos to remain active in the entertainment industry. As of July 21, 2021, she has been an idol going by her full name Saira Natsuki (彩良菜月) with the group Merci Merci under Space Craft Group, and still actively used her College Cosmos Twitter and Instagram accounts.