Kim Se Jung revealed other artists treat her differently as a member of Gugudan than they did when she promoted as part of the project girl group IOI.

On the March 30th episode of JTBC's 'Knowing Brothers', Hyomin opened up about feeling uncomfortable around hoobae artists, saying, "It's been 11 years since I debuted. I think you start being aware of other people's opinions as you get older. It wasn't the easiest thing to navigate around the hallways at broadcast stations. Still, some of them came to introduce themselves to me and said I was pretty."

Kim Se Jung then added, "There's a saying that you're only a sunbae if you're popular. When I promoted as a member of IOI, there were hoobaes who would say happily, 'Oh my gosh, hello, sunbaenim.' Now, they ignore me."