Stellar revealed their ideal types during the February 3 airing of 'Kim Chang Ryul's Old School.'

Kim Chang Ryul said, "Stellar was first on real-time searches and Park Hae Jin was second.  I heard that Stellar's Gayoung likes Park Hae Jin as her ideal type, so she asked for a screenshot [of the real-time search list] because she liked [both names] just being there."  Shyly, she acknowledged that he was her ideal type.  Jeon Yul chose Kim Soo Hyun, Hyoeun chose Nam Joo Hyuk, and Minhee chose Jung Woo Sung.

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On top of that, Gayoung revealed that her last relationship was over two years ago. When he pointed out that this must have been while she was active as a singer, she brushed it off nonchalantly by saying, "It's okay because it was the past."