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On the September 9 episode of 'Radio Star,' the singer revealed that she used to dorm with Isak N Jiyeon, Go Ara, M.I.L.K's Hee Bon, Taeyeon and Tiffany. When the MCs asked her who she got along with the most, Stephanie answered, "My group member Lina. I don't have many friends. The only friend I had [in SM] was Kim Ki Bum. The reason I specially think of Ki Bum is because he was sitting at the judging panel in America. We spent our trainee days together. But my only friend has left SM. To be exact, his contract with the agency ended," drawing laughter. 

Stephanie, who also used to live under the same roof as Kyuhyun, told the MCs, "I've watched Kyuhyun grow up [since he entered SM]. When he just came into the company, there was a photo shoot, and Kyuhyun was in the corner. He looked like a squatter," joking. She quickly added, "I will end here... He's very kind," much to everyone's amusement.