Kuuhaku Gokko

 (空白ごっこ) is a music unit formed in 2019 by Vocaloid producers koyori (also known as DenpolP) and Harihara Tsubasa (also known as HarryP), and singer Setsuko.

Members

 * Setsuko (セツコ) - Vocals
 * koyori - Music production
 * Harihara Tsubasa (針原翼) - Music production

EPs

 * [2020.10.21] A little bit
 * [2021.10.20] Kaika (開花)

Digital Singles

 * [2020.12.29] Kizu na Youso ga Tarinai (キザな要素が足りない)
 * [2020.12.29] Risk Management (リスクマネジメント)
 * [2021.01.01] Unmei Kaika (運命開花)
 * [2021.05.12] Strobe (ストロボ)
 * [2021.07.21] HauL (ハウる)
 * [2021.09.22] Play Button (プレイボタン)