On March 20, Joo-yeon Lee marked her birthday with an Instagram update, thanking fans and sharing her excitement. She posted photos surrounded by a lavish cake and gifts — with a standout custom cake featuring her own face — and posed in cozy home loungewear. Fans quickly flooded the comments with support and birthday wishes like "Happy birthday." One fan even shared, "I just finished a social worker interview, and seeing your birthday video go up really moved me."