Suhyun revealed she tells all her secrets to her older brother, and Jinwoon responded, "I was curious while watching 'Radio Star'. If you get a crush, do you tell your brother everything?" She explained, "I tell him everything. It's not that I have to tell him, it's just that I don't have anyone to tell. He knows how to keep secrets. On broadcasts, he acts as if he looks after me a lot, but he's not like that."
Jinwoon said, "If I had a younger sister, I think I would protect her and everything. Don't you call him to pick you up after you're out of the academy or anything like that?" Suhyun replied hilariously, "He doesn't pick up the phone. I've memorized his caller ring."