DIA Jung Chae-yeon 'careful'

DIA Jung Chae-yeon, who attended the rehearsal of Mnet M Countdown held at CJ E & M Center in Sangam-dong, Seoul on the afternoon of the 25th, is posing.

DIA Jung Chae-yeon, who attended the rehearsal of Mnet 'M Countdown' held at CJ E & M Center in Sangam-dong, Seoul on the afternoon of the 25th, is posing.