Fans were shocked!
Koreaboo
8 minutes ago
On August 21, ZEROBASEONE’s Sung Hanbin attended a media day event for the 2025 ISFC Seoul Sport Climbing & Paraclimbing World Championships.
He appeared at the event to support his younger sister, Sung Han Areum, a member of the national sports climbing team.

His sister, a rising star in South Korea’s sports climbing, recently won the bronze medal in the women’s speed relay final in China. This was considered a significant milestone in the history of Korean sport climbing.
클라이밍국대동생과 팔척아이돌성한빈오빠
소리켜봐 “정말유전자의 힘이 대단합니다” 이럼 아 pic.twitter.com/VqdKy0PkNz
— 냥콩 (@Khbeeen) August 21, 2025
At the event, Sung Hanbin made a special visit to support his sister, who was appointed World Championships ambassador.
안녕하세요 현재 제로베이스원 리더로 활동하고 있는 성한빈이라고 합니다 반갑습니다 오늘 이 자리는 제 친 여동생이자 스포츠클라이밍 스피드 국가대표 성한아름 선수를 응원하기 위해 이 자리에 왔고요 또 얼마 전 청두 월드 게임에서 동메달을 획득한 우리 아름 양에게 다시 한번 진심으로… pic.twitter.com/b2xEHgEoiT
— 성한빈.zip (@shb_zip) August 21, 2025
“I am Sung Hanbin, and I am currently the leader of ZEROBASEONE. I’m here today to cheer my sister, a national speed climbing athlete.
I want to offer my sincere congratulations once again to Areum, who recently won the bronze medal. I would like your continued interest and support for the World Championships, the first held in Korea, from September 20-28.”
— Sung Hanbin
His surprise appearance at the event captivated many and became a hot topic online as a memorable moment for the siblings.