BTOB's Changsub is beginning the countdown to his solo comeback with a special single 'SURRENDER.'

On August 90 at midnight KST, the BTOB member dropped the scheduler for his upcoming special single, 'reissue #001 'Surrender.' According to the chart, Changsub will begin dropping concept photos on August 31 KST followed by more teasers until the album's release.

The special single 'Reissue #001 'SURRENDER'' will be released online on September 6 KST.