空白ごっこ (KuhakuGokko)

“Kuuhaku Gokko” is a music project consisting of three members: Setsuko, a vocalist who is active as a solo artist performing theme songs for TV anime and commercials; koyori (電ポルP), a composer with immense popularity in the Vocaloid scene; and Tsubasa Harihara (針原翼/はりーP), who also works as an artist and producer for both domestic and international artists. The project celebrated its 5th anniversary in December 2024.