The D in the group's name stands for "Drama" (acting work), "Dream", "Debut", "Discovery" and "Development" (growth and advancement).
In addition to their individual careers, the D-Boys are also involved in collective projects, as part of the group promotion work.
During the summer of 2009, 19 D-Boys members, including Yu Shirota participated in performances for fans at Akiba Plaza called "Kotoshi no Natsu wa Mainichi Dokoka de D-Boys Uki-uki Yatta Hohohoy" or for short, Natsu Doko.
Three CD+DVD sets featuring different recorded audio theater by separate groups of D-Boys members and footage of Natsu Doko were released on December 16, 2009.
D-Boys members have released merchandise in the form of photobooks, DVDs and CDs individually, or in relation to a work project (e.g. character image CDs/photobooks).