Kahi appeared on the SBS radio program 'Kim Chang Ryul's Old School' on May 19 and talked about her first meeting with S.E.S's Bada, who is from one of the first generations of idols.

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Kahi said, "Bada promoted since she was young, and she's much more of a senior than I am, so I definitely thought she was my unnie (older than me). That's why when I first saw bada, I greeted her with, 'Hello, unnie.' However, after she was greeted, Bada asked me how old I was, so I replied that I was born in 1980. She told me we were the same age."

She continued, "In those situations, you should say, 'Ah, really?' in informal terms, but it came out as, 'Really?' in formal," making everyone laugh. It is hard to suddenly talk informally to someone with so much more experience who you always thought was older!