The group debuted on March 22, 2021, with the single "I'm Real".
The group consists of 11 members: Seoa, Sujin, Minji, Zae-in, Hyejin, Dain, Chorong, Jiwoo, Yeoreum, Sarang and Yejin.
[1] They are created with artificial intelligence technology, Deep Real.
[2] On March 22, 2021, IITERNITI released their debut single "I'm Real", sung by Hyejin, Seoa, Yeoreum, Sujin and Minji.
[3] On August 25 and 26, Pulse9 released the teasers of sixth member, Dain's solo debut single "No Filter", and released the song on August 27.