The original Ensemble Stars! mobile game was released in Japan.
The first music CD for Ensemble Stars! was released, featuring songs performed by the characters in the game.
The announcement was made that Ensemble Stars! would be adapted into an anime television series.
The Ensemble Stars! anime television series premiered in Japan, bringing the franchise to a wider audience.
Ensemble Stars!!, the reboot of the original game with new stories and features, was released to the public.
The establishment of Yumenosaki Private Academy, dedicated to nurturing male idols and entertainers.
The idol unit Trickstar, consisting of members Hokuto Hidaka, Subaru Akehoshi, Makoto Yuuki, and Mao Isara, officially forms at Yumenosaki Academy.
The academy begins its official idol activities program, allowing students to debut as professional idols and participate in live events.
Trickstar holds its first live performance, marking their official debut as idols in the entertainment industry.
The unit Knights, comprised of members Kuro Kiryu, Mika Kagehira, Izumi Sena, and Reiji Sakamaki, is formed at Yumenosaki Academy.
Mahiro Watanabe transfers into the academy and joins the idol scene, eventually becoming part of the Valkyrie unit.
The idol unit Valkyrie, known for their theatrical and avant-garde performances, including members like Mayoi Ayase and Tetora Nagumo, is formed.
Yumenosaki Academy hosts its first large-scale idol festival, featuring performances and competitions between the various units.
The academy expands its reach by starting live streaming of idol performances, allowing fans worldwide to connect with the students.
The unit 2wink is formed, consisting of twin members Kaoru Hakaze and Hikaru Hakaze, popular for their sibling synergy.
A large-scale cross-unit event is held, promoting cooperation and competition among all idol units in the academy.
Yumenosaki Academy initiates the Shining Ensemble Project to nurture and promote new idol talents with groundbreaking performances.
The Trickstar unit stars in their first anime adaptation, expanding their popularity beyond the academy environment.
The cute and youthful idol unit Ra*bits, featuring Kaoru Hakaze and others, debuts to capture hearts with their bright, energetic performances.
The rock-style idol group UNDEAD is formed, bringing a darker and edgier aesthetic to the academy's idol activities.
An annual event promoting unity and friendship among the various idol units, featuring collaborations and special performances.
