Hi-Fi Un!corn is composed of 5 members born between 2000 and 2005. Their members' ages ranged from 17 to 23 years old at the time of the group's debut in June 2023. The oldest member is Hyunhyul (born Jan 15, 2000). The youngest member (maknae) is Min (born Sep 8, 2005).
Hi-Fi Un!corn has 4 Korean members (Hyunhyul, Kiyoon, Tamin, Min) and 1 Japanese member (Shuto).
