On part 2 of Girls' Generation's appearance on 'Knowing Brothers', Seohyun revealed how her feelings were hurt when she used to do morning calls.
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Seohyun said, "When we all used to live in a dorm together, I always woke up the earliest and did morning calls. But every time, my feelings got hurt. It was hard for me as well to wake up early but there was one time Sooyoung unnie said 'Mind your own business' and that shocked me. I was really sad at the time."