ChoA has announced her departure from AOA.

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After a lot of speculation that she would leave AOA, ChoA herself confirmed her leave through an Instagram post on June 22. She explained her reasons were depression and insomnia, stating her attempts to use medication did not help.

Her full Instagram post is below:

"Hello, this is ChoA.

I was very thankful and sorry that so many people took interest in my sudden hiatus. It's a bit late, but I'd like to tell you the reasons I had to rest and the decision I've come to after a lot of thought.

AOA wasn't a team that received a lot of love as soon as it debuted, so I was always grateful for the love and think of it preciously. Although I was the oldest in the group, I'm still young. There were many times I wanted to cry during our promotions. I know you all liked me because of my bright image, however. I was crying inside, but I had to appear happy. This happened over and over again, and the more I forced myself, the sicker I felt.

To treat my insomnia and depression, I started taking medication and lessening my work load 2 years ago. However, I ended up stopping my activities as the problem wasn't due to exhaustion. I tried to get back to work as I thought of everyone waiting for me, but I felt that if there was more negative attention due to my hiatus, this would hurt my group members even more.

After speaking to our label, I've decided to leave the team called AOA today, and I'm going to cheer on my fellow members.

During the past 8 years that I've prepared and worked as a celebrity, I learned many things. I think this difficult moment will make me grow. I'm 28 this year, and in the future, I'll be reflecting on confused self. For the remainder of my 20s, I'd like to experience things that are appropriate for my age.

Currently, I'm not thinking of promoting except for what's already scheduled for me individually. One day when I don't feel afraid and feel I can show a better side of myself, I wish to return if there are still people cheering me on. I'm a person who's lacking a lot of things, but I would like to sincerely thank those who keep supporting me and worrying about me. To the members I've been with for so long, to those who helped me overcome what I lack so I can receive love, and to those who loved me and AOA, I sincerely thank you from the bottom of my heart."

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A post shared by ?? (@queenchoa_) on Jun 22, 2017 at 5:17am PDT

How are you taking the news of ChoA's departure from AOA?