All members are contestants in JTBC's music survival show SuperBand in 2019.
Originally as four, the band debuted on April 3, 2020, with the digital single album Square One and the title track "Invisibles".
On April 4, 2022, it was announced that Lim Hyeong-bin has left the group due to musical differences.
[3] On January 6, 2023, IST Entertainment announced their departure from the agency after terminating their contracts.
[4] On January 28, 2023, Kang Kyoung-yoon announced on his Instagram his departure from the group.