On the first episode of 'Idol Agency,' Seunghee covered BTS' dances. Tony An then asked if she knows anyone from BTS. Seunghee revealed, "I went to high school with Jimin and V."
Seunghee shared she's still friends with them and they say hi when they meet each other. However, Seunghee said, "I could not say hi to them when I was a rookie because my agency was so strict. They told us not to say hi even when we met our friends."