IDOL:UnderCode’s Kachofugetsu sets 26 October song release
IDOL:UnderCode’s five-member group Kachofugetsu will release its first original song on major music platforms on 26 October.
IDOL:UnderCode’s five-member group Kachofugetsu is moving from its multimedia story into real-world music, with its first original song arriving on major streaming services on 26 October. The track, titled Mada Oware Nai Yo Ne? (まだ終われないよね？), is already available early on TikTok and will expand to Apple Music, Spotify, YouTube Music, Amazon Music and other platforms next week.1
A new song for Kachofugetsu
Kachofugetsu is made up of Akane Kirishima, Airi Shinonome, Hiyori Hanamura, Matsuri Asahina and Sayo Sakakibara. The official IDOL:UnderCode site presents the group as the centre of a project that combines anime, VTuber activity and games in one shared world, with its story developing alongside the performers and their audience.1
The song is written and composed by Ryota Saito and Diz, creators whose previous work has included music for major artists, anime and VTuber projects. The arrangement gives the release a useful connection to the wider entertainment world rather than treating Kachofugetsu as a purely fictional idol group.
The track began its early TikTok release on 18 October. The full digital launch follows on Monday, 26 October, giving fans a short window to hear the song through short-form clips before it reaches the larger music platforms. The official project site lists the release as a music update and links readers to the full announcement.1
More than a fictional idol project
IDOL:UnderCode is built around the idea of a “sync reality” project. Its fictional characters have profiles and relationships, but the performers also appear through real social and streaming activity. That makes Kachofugetsu’s song a genuine project milestone: it is both a release for the characters and a piece of music performed and promoted by the members’ real-world channels.
The group’s five members are presented as having different histories and personal struggles while working towards the same goal. Akane, for example, is described as a girl from a prominent underworld family who continues pursuing her dream of becoming an idol despite repeated setbacks. The wider narrative then feeds into live streams, performances and fan interaction, with the project promising future developments across anime, games, music and events.1
Anibu’s report confirms the release timing and the list of services, while also linking the music distribution page and each member’s TikTok account.2 That makes the 26 October date more concrete than a simple teaser announcement: the song is already being introduced through one platform and has a scheduled wider release across the mainstream services.
What to expect on 26 October
The song will be available to stream and purchase from 26 October. Fans can currently find the early TikTok version and follow the individual members while waiting for the complete platform launch. The project’s official site remains the best place to follow further updates, since its schedule can change as new music, live appearances and story content are added.
Our opinion
Kachofugetsu’s debut is a sensible first step for IDOL:UnderCode. The project’s pitch depends on its formats overlapping, so a real song gives the anime, VTuber and game elements something tangible to share. The important test will be whether the release feels like more than promotional background music: a memorable track and consistent activity from all five members would give the project a stronger identity than its ambitious cross-media premise alone.
For now, the rollout is clear and easy to follow. TikTok provides the early introduction, while the 26 October release gives listeners a firm date for the full launch. That is a modest announcement, but it is exactly the sort of concrete development that can turn an unfamiliar multimedia project into something audiences can actually engage with.