sunsoogirl (三四少女)

sunsoogirl (三四少女) is a Japanese indie rock and J-rock band based mainly in Osaka. Formed on October 15, 2021 by four members who met through social media, the group began activities in March 2022. It released the self-produced first EP "創刊号" on March 4, 2023, reached the final round of マイナビ 閃光ライオット2024 produced by SCHOOL OF LOCK in August 2023, and issued its first music video, "ユートピア", on YouTube in December 2023; the video passed 100,000 views within two months, and the song was released on March 26, 2024. On March 25, 2024, sunsoogirl was runner-up at the 十代白書2024 final, and in November 2024 it released the first album 『恋してる・コンティニュー』 through its self-run label 好吃同盟. The group's official site is hosted on Bitfan. In June 2025, guitarist たみ left the band, after which sunsoogirl continued as a mixed-gender three-piece with support guitar. The band held its first one-man live, "おまじないっ！", on January 17, 2026 and announced a major-label debut with ワーナーミュージック・ジャパン. In March 2026, "Aoi Haru", from the group's major-debut EP, was chosen for an ABC-MART web commercial. sunsoogirl made its major debut in April 2026 with "Isshou Nakako" ("一生仲仔"), the ending theme of the TV anime "Otaku ni Yasashii Gal wa Inai!?" ("Otagyaru"); the music video premiered the same day, and the song later debuted at No. 1 on the Heatseekers Songs chart. In July 2026, the group was named in the first lineup announcement for MINAMI WHEEL 2026.