Doojoon revealed, "My older sister had a son in early June. I've become an uncle. It's fascinating." When DJ Kim Shin Young asked if his nephew looked like him, the B2ST member responded, "He looks different as he grows every day. I can't say who he looks like, but he looks like my older sister. My older sister and I look similar. I haven't been able to see him because I'm so busy."
He continued, "It was more fascinating than marriage. I became an uncle, my sister became a mom, and my parents became grandparents."
B2ST recently made their official comeback with "Ribbon".