[YOLO] begin era starting off chaotic (onlyoneof)

Hi guys!! Because of undergrOund idOl era, I’m going to try to upload a video for every single members solos for the next few months! Kicking it off with Yoojung, then moving on to Kyubin next. I don’t have much to say this time, but I hope you enjoyed this video! stream begin and stan #onlyoneof