Yoo So Young shared why she left After School.
On the July 31 airing of MBC Every1's 'Video Star', Yoo So Young talked about her departure from After School, and explained, "There were health issues and my original major was in acting. I felt like it'll be more difficult to pursue acting when I get older, so I decided to leave the team."
She also said, "After School's Kahi unnie was formerly a backup dancer so her standards were different than ours. We pulled an all-nighter often so that was hard too."