By Dec 30, 2020 Aespa's Karina recently disclosed her personal, No. 1 secret to fans, and says she is embarrassed about it. Nevertheless, this makes her unique. On Dec. 30, a video of aespa celebrating Christmas together was uploaded on the rookie group's YouTube channel. In the video, the members answered several questions, mostly related to Christmas. At one point, aespa was asked to share one secret with the fans. When it was Karina's turn to share, she surprisingly said that she has a lot to reveal. Aespa's Karina then decided to tell fans her No. 1 secret about her body that not many people know, apart from her bandmates. She went on to unveil that her tailbone is much longer than average. The rookie idol explained that when she sits normally, she can't feel it. However, when she sits in particular positions in which she put stress on the lower back, her tailbone will touch the floor and feel extremely painful.