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During the show, a listener sent a message claiming that s/he was Boa's high school classmate, and that Ryu Joon Yeol also attended the same school.
At this message, Boa responded, "I didn't know that [Ryu Joon Yeol] and I attended the same school, but I did hear about it. His class was right next to mine. I wonder if he recognized me, as well."