ONO GIRLZ Profile: ONO GIRLZ Facts and Ideal Types: ONO GIRLZ, formerly known as BLACK MAMBA (블랙맘바), was a 4-member girl group under ONO Entertainment. The group consists of: Bora, Huiwon, Seeun, and Subin. They were originally set to debut in April 2018 but had been pushed back due to lineup changes before they were in … Continue reading ONO GIRLZ Profile and Facts