集団行動

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About

A Japan-based J-pop group centered on guitar-and-drums bandcraft and released through CONNECTONE.

集団行動 is a Japan-based J-pop group built around live-band instrumentation—guitar, bass, drums and vocals—rather than studio-only production. The ensemble’s core sound places instrumental interplay at the foreground, with guitar and drums providing structural drive while vocals and bass supply melodic and rhythmic anchors.

According to our records, the band was formed by Shuichi Mabe on guitar, Kensuke Nishiura on drums, Rina Saitou on vocals and Micci on bass, a configuration that signals a traditional four-piece band operating within J-pop conventions. The group is affiliated with the CONNECTONE label, which houses their releases and positions their work within Japan’s wider pop and band scenes. Within that context, arrangements emphasize band dynamics and role-specific textures—sharp guitar lines, steady drum patterns and distinct lead vocal delivery.

Lineup information lists current members as 真部脩一 and 西浦謙助, reflecting the continuity of the band’s instrumental core. our records serves as a primary public catalogue for the group’s personnel and instrumentation. Collectively, the available documentation frames 集団行動 as a band that leans on live instrumental roles inside J-pop frameworks, recorded and released through CONNECTONE while remaining identified with the Japanese group scene.

Sound

Their sound centers live-band textures—guitar, bass, drums and lead vocals—arranged within J-pop forms, with guitar lines and drum patterns driving the songs and vocals carrying the melodic focus.

Scene

Rooted in Japan’s pop and band circuit, 集団行動 occupies a position that emphasizes band instrumentation within J-pop. The group’s releases and personnel are documented through CONNECTONE and Discogs, linking them to Japan’s label-oriented pop ecosystem.

Timeline

· The band was formed by Shuichi Mabe on guitar, Kensuke Nishiura on drums, Rina Saitou on vocals and Micci on bass, according to Discogs.
· 集団行動 operates within the J-pop genre and is identified as a group rather than a solo project.
· The band is associated with the CONNECTONE label, which is listed as their label.
· Discogs lists the original lineup and instruments for the group, confirming a four-piece band setup.
· The band’s instrumentation places guitar and drums alongside vocals and bass as the core elements of their music.
· Current member listings name 真部脩一 and 西浦謙助 as the group’s present personnel.
· The group is based in Japan and is part of the country’s broader pop and band scene.
· Publicly available profiles and catalogues such as Discogs serve as primary sources for the band’s personnel and role assignments.