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Previously, the girl group Playback announced the addition of a 5th member Ma Eunjin, a former 'K-Pop Star 6' contestant. Prior to her debut in the girl group, Eunjin will be greeting fans with a single titled ''I Understand''.

Eunjin's solo debut with her 1st digital single is set for June 9 at noon KST. Judging by her teaser image, the mood seems on the heavy side, hinting at sorrow or numbness. 

Stay tuned for more of Eunjin's solo release!