New seven-member girl group CSR will make its debut on July 27, according to its agency Pop Music on Monday.

All of the members are 17 years old, born in 2005 — Duna, Sihyeon, Sua, Seoyeon, Geumhee, Yeham and Yuna. CSR is an abbreviation of cheotsarang, the group’s Korean name, which means first love. The group plans to show various interpretations of first love and tell the story of the members growing up year by year.

CSR opened its official fan cafe and social media accounts on Friday. The seven members revealed their individual teaser vides on Sunday, giving a glimpse into their personalities.

“CSR will be a group that tells the everyday story of girls,” stated Pop Music. “Since it consists of members all of the same age, CSR will present a one-of-a-kind theme and chemistry of teens. Please stay tuned.”

BY HALEY YANG [yang.hyunjoo@joongang.co.kr]