The group was composed of ten members: Nayoung, Roa, Yuha, Eunwoo, Rena, Kyulkyung, Yehana, Sungyeon, Xiyeon, and Kyla.

The members Nayoung, Roa, Yuha, Eunwoo, Rena, Kyulkyung and Xiyeon competed together on Mnet's survival television show Produce 101, which aired from January 22 to April 1, 2016.

[9] They held their last concert as Pledis Girlz, entitled Bye & Hi, on January 6, 2017, and then renamed to Pristin, a portmanteau of the words "prismatic" (bright and clear) and "elastin" (flawless strength).

[14] On the same day, a remixed version of "Black Widow" was released as the album's second and final single, which was performed on a few music shows in order to conclude Hi Pristin's promotions.

[20] Pledis Entertainment announced that while Kyulkyung, Yehana, and Sungyeon would stay with the company, the remaining seven (Xiyeon, Rena, Roa, Kyla, Nayoung, Yuha, and Eunwoo) would be departing.