fromis 9 (Hangul: 프로미스나인; initialism for From Idol School; stylized as fromis_9) is an nine-member South Korean girl group formed by Off The Record Entertainment through the 2017 reality show Idol School on Mnet. The group's name, pronounced as "promise" in Korean, also means "to keep their promise [to viewers] to be the best girl group". The group composed of: Saerom, Hayoung, Gyuri, Jiwon, Jisun, Seoyeon, Chaeyoung, Nagyung, and Jiheon.