Yuna

Sometime in 2016, Yuna was one of seven finalists of the Japanese television show スゴイね! キッズオーディション, thus becoming a member of Harajuku Dreammate, a kids J-pop and idol group with the concept of young girls who are from Harajuku. However, it wasn't until June 6, 2018 that they officially released music and thus debuted with the release of their first single album "First Step".

She officially graduated from the group on March 23, 2019. On January 7, 2022, Yuna was revealed as one of the newest members of Pop Music's trainee girl group, 05Class (now known as CSR). The girl group debuted on July 27 with the mini album Sequence : 7272.