was a Japanese alternative idol girl group formed in 2024 when Mameshiba no Taigun and Tonai Bousho merged into one group. They made their first recording in April 2024. They went on an indefinite hiatus in January 2025 after Mameshiba no Taigun resumed activities.
History On January 6, 2024, Mameshiba no Taigun and Tonai Bousho merged to form Mameshiba no Taigun Tonai Bousho a.k.a. MonsterIdol. In January, they embarked on the MonsterIdol Tour. Miku withdrew from the group on March 31 due to the worsening of her chronic illness. They released their debut single, "Wonderland", on April 3. On August 1, they released the digital singles "High Hopes" and "Ikasama Dance". The group performed at The Underworld in London alongside ASP and Bis on August 28. They performed in London for the second time alongside ASP and ExWhyZ on November 27. They released their first album, Toppa, on December 25. On January 8, 2025, the group went on an indefinite hiatus after the re-formation of Mameshiba no Taigun.
Members Current
Former
Discography Studio albums Title Album details Peak chart positionsOriconBillboard Released: December 25, 2024 Label: Avex Trax Formats: CD, digital download 16 —
Singles Title Year Peak chart positions AlbumOricon 2024 6 "High Hopes —Toppa — "Break Out" — "—" denotes releases that did not chart or were not released in that region.
References