BTOB's Changsub released more concept images for 'Mark.'
'Mark' is Changsub's very first solo album containing a total of 6 tracks titled "Way," "Space," "Shelter," "Ever," "Gone," and "Gone" (inst). In the concept images for his solo debut, Changsub captivates with a solemn concept. Take a look at his newest photos below.
'Mark' will be out on December 11.