At midnight on Oct. 19, DKB's agency Brave Entertainment released the first MV teaser for DKB's third mini-album title track "Work Hard" on its official SNS channel, sparking curiosity.

In the teaser released, the members who appeared with surprised faces jumped from behind the female lead drinking wine with steak caught the eye. Also, in the second half of the teaser, all the members were sitting on the white table, posing like mannequins, arousing fans' curiosity.

DKB's title track "Work Hard" is a hip-hop R&B song that gives you a dreamy atmosphere, and contains a story about working hard to portray a wonderful future with a lover.