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[[CSR]](첫사랑) is a South Korean girl group formed and managed by Pop Music. The septet – consisting of members Sua, Geumhee, Sihyeon, Seoyeon, Yuna, Duna and Yeham - They made their official debut on July 28, 2022, with the release of their first extended play (EP) Sequence: 7272.  Background Info  <big>Background Info</big>  fo