NiziU (Kanji: 虹U) is a Japanese girl group under Sony Music and JYP Entertainment, formed by through the survival shows Nizi Project and Nizi Project Season 2. The group consists of 9 members: Mako, Riku, Rima, Rio, Maya, Miihi, Mayuka, Ayaka and Nina. They debuted on December 2, 2020 with the single "Step and a Step". They released a pre-debut digital mini album titled Make You Happy on June 29, 2020.