Doll Army operates as a specialized faction within the Dragon Empire's military hierarchy, directly serving Empress Zara. This unit functions within the empire's integrated command structure alongside counterparts like Doll Satan, Doll Command, Doll Phantom, and Doll Navy. Doll Army contributes to the empire's strategic objective of conquering Earth and resurrecting the devil god Jashin Drago.

During the episode "Rampant! Traitorous Doll Army!", the faction instigates a full-scale rebellion against Empress Zara and the Dragon Empire's leadership. A commanding officer within Doll Army spearheads this insurrection, rallying the faction to openly challenge Zara's authority. Imperial loyalists swiftly crush the uprising, eliminating the mutinous elements. The episode concludes with Doll Army's decisive destruction following its failed revolt.