Ju Jingyi, a member of I.O.I, made a surprise appearance at the group's Hong Kong concert on the 23rd, showcasing her unwavering loyalty. She shared photos from the concert's backstage and audience areas on her SNS, showing her supporting the members from the staff section in front of the stage. Ju Jingyi debuted as part of I.O.I through Mnet's 'Produce 101' in 2016 and re-debuted as a member of Pristin in 2017. As a Chinese native, she transitioned to acting starting with the Chinese drama 'Da Tang Nu Fa Yi' in 2020 and has built a successful career in the Chinese entertainment industry. Although she was unable to participate in I.O.I's official 10th anniversary reunion activities, her surprise visit to the Hong Kong concert demonstrated her lasting friendship with the members and presented a special gift to fans.