Haruna

She was confirmed to be a member of MYSTIC Rookies on October 4, 2021, participating in a dance cover of Cardi B's "Up" alongside other MYSTIC Rookies members Suhyun and Haram. She was later announced as a member of MYSTIC STORY's then upcoming girl group Billlie. The group debuted on November 10, 2021 with their first mini album The Billage of Perception : Chapter One.