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Heart Heart consists of Taeha, Sehyung, and Gowoon, and is a Berry Good unit team with a different, more mature mood than the original 6-member team. Heart Heart's debut single "A big mess, a big mess has happened" (literal translation) is set for release on April 27 at 6PM KST. 

Stay tuned for more of the Heart Heart members' concept images, coming soon.