Just B is ready to make their debut as they unleash their ambition in the 'JUST BURN' trailer.

On June 15, the rookie boy group unveiled an intriguing teaser film that prepares their debut. The members appear in a prison-like facility as they train and prepare for something until they realize the reality lies somewhere else.

The boy group's debut is set for June 30, so follow along until the launch of the new group.