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Woollim Entertainment issued an official statement on January 6 stating that Jaeseok will no longer be part of Golden Child. The statement reads, "Hello, this is Golden Child's agency, Woollim Entertainment. First of all, we would like to apologize to everyone who has been supporting and showing much love to Golden Child as we bring you an unfortunate news. Jaeseok who has received much love and was active as a member of Golden Child will no longer be able to promote with the group and cease activities in the entertainment industry due to recent health-related issues and other big burdens he bore."

The agency continued, "We as a company spent much time and discussed with Jaeseok in regards to the possibility of future activities and directions. After conversing with both Jaeseok and Golden Child members, however, we decided to respect Jaeseok's decision and made the overall decision. Woollim Entertainment will continue to cheer and support Jaesok's future and continue to work to the best of our abilities to reorganize with the remaining Golden Child members. Once again, we would like to apologize to the fans for bringing this unfortunate news to start 2018 and we will do our best show an improved and hardworking Golden Child. We ask the fans for an unchanging support and attention, and Golden Child will return with great music as soon as possible."