Ki Hui-hyeonActing · b. 1995 · Namwon, North Jeolla, South KoreaShareKi Hui-hyeon, better known by the mononym Huihyun and former stage name Cathy, is a South Korean singer. She is best known as a member of the South Korean girl group DIAKnown forAdd6.7Winter in Sokcho2025 · Bandaged WomanAdd3.2Love in Black Hole2021 · Series · AnnaAdd5.4Love Again2018 · Hui-hyeonAdd3.4Love & Wish2021 · Series · Hong-yeonAddDIA 1st Concert "First Miracle"2016 · HuihyunAdd다이아′s 욜로트립2017 · SeriesYearPopularTop ratedAll acting creditsAdd6.7Winter in Sokcho2025 · Bandaged WomanAdd3.2Love in Black Hole2021 · Series · AnnaAdd3.4Love & Wish2021 · Series · Hong-yeonAdd5.4Love Again2018 · Hui-hyeonAdd다이아′s 욜로트립2017 · SeriesAddDIA 1st Concert "First Miracle"2016 · Huihyun
