Jo I-hyeon

Cho Seung-hee, better known as Cho Yi-hyun, is a South Korean actress, singer, general producer of the label company PocketDol Studio and founder of PocketDol Studio's label M25. She debuted as new member of F-ve Dolls in 2013 and continued to promote until the group unofficially disbanded in November 2014, which was confirmed in March 2015. Following the disbandment, she returned as a trainee for almost a year before re-debuting as the leader of DIA in September 2015.