The initial visual novel game of Uta no Prince-sama was released, marking the beginning of the franchise.
The first season of the Uta no Prince-sama anime was aired on television, significantly increasing the series' popularity.
The debut music single related to the anime was released, contributing to the franchise's multimedia success.
The second season of the anime aired, continuing the story and fan engagement.
The sub-unit Quartet Night released their debut single, expanding the music offerings of the franchise.
The third season of the anime, titled Uta no Prince-sama: Maji LOVE Legend Star, was broadcast.
A popular music single from the franchise released, showcasing the continued success of its music.
A mobile rhythm game based on the franchise was announced, expanding its reach into mobile gaming platforms.
The mobile rhythm game officially launched, gaining a large player base and adding to franchise popularity.
Haruka Nanami enrolls in Saotome Academy's composing course, aiming to become a composer.
The idol group STARISH is formed, consisting of Haruka's composed songs and the five initial members of the group.
STARISH makes their official debut, performing Haruka's first composed song in a public concert.
Natsuki Shinomiya joins STARISH, expanding the group to six members.
Haruka Nanami becomes the official composer for all STARISH's songs, solidifying her collaboration with the group.
The rival idol group Quartet Night debuts, challenging STARISH's popularity.
Shining Agency expands its roster of idols, including the formation of new groups like HEAVENS.
The idol group HEAVENS debuts, featuring new members and aiming for dominance in the idol scene.
STARISH embarks on their first nationwide tour, gaining popularity across the country.
