E.SO was a member of the girl group 'Berry Good' and was a lead vocalist in the group with good voice and power. Currently, she continues She's various musical activities as a solo singer. She appeared in Voice Korea's spin-off Voice Kids in 2013 and was one of the top three, and was active as 'Berry Good' from 2015 to 2021. Starting with she's single album 'Orgel' in July 2021, she plans to expand his diverse musical spectrum as a solo artist by releasing she's single album 'Black Ocean' in August 2022.