SEE ALSO: (G)I-DLE's Soyeon receives criticism for lack of communication with fans on 'Bubble'

An insider claimed, "Bora has been learning boxing diligently. It's to establish a toned, healthy body." 

After SISTAR's disbandment, Bora signed with Hook Entertainment, home to Lee Seo Jin, Lee Seung Gi, and more. She is currently also in a public relationship with Big Star's FeelDog. Meanwhile, fellow actress Lee Si Young debuted as a professional boxer in 2012 after falling in love with the sport, and remained active in the sport for a brief period.