CSR (Korean: 첫사랑/Cheos-Sarang; Japanese: 最初の愛), meaning "first love," is a South Korean girl group under A2Z Entertainment. The group consists of seven members. Their concept is a class of girls all born in 2005. They used to be called "05class" but ultimately changed their name to CSR. They made their official debut on July 27, 2022 with the mini album "Sequence: 7272".
Korean: 금희
Japanese: クムヒ
Korean: 시현
Japanese: ファン・シヒョン
Korean: 서연
Japanese: ソヨン
Korean: 유나
Japanese: 友奈
Korean: 두나
Japanese: ドゥナ
Korean: 수아
Japanese: スア
Korean: 예함
Japanese: イェハム