In 2015, after the departure of the member Jieun, Yiyeon was introduced as a member of the girl group 1PS, under the stage name Dasol. She was a member of the group until their disbandment sometime in 2015. However, she never actually made her official debut with them.
She was a trainee under MLD Entertainment.
She has a dog named Dosol.
She is roommates with Simyeong.
Birthdate: May 28, 1995 (age 24)
Height: 170 cm