BOL4 released a new mini-album "Adolescent Collection 2: Butterflies that saw flowers" They also held an online showcase regarding to the release. After the departure of Woo Ji-yoon, it was the first stage for BOL4. She left a comment saying "Without the present of her who was being with me for 4 years, I feel extremely nervous and have some worries."
BOL4's management office requested a formal apology from candidate Kim Gun-tee, who is a proportional runner, from the national party who raised allegations of operating the sound source chart. Charges if you do not apologize. . .