Aokage operates as one of three principal ninja agents striving for peace amidst Japan's chaotic late sixteenth-century civil wars. He functions alongside teammates Akakage and Shirokage, confronting hostile forces that encompass evil warlords, sorcerers, rival ninja clans, and daikaiju. His approach uniquely integrates specialized high-tech gadgets and weaponry within the feudal era.

Consistently portrayed as the youngest trio member, Aokage masters volatile ordnance and wields a chain weapon as his signature armament, defining his distinct combat role. He possesses a familial tie to a blind sister, Kagero; her abduction by adversaries becomes a narrative focus, culminating in her rescue. During pivotal engagements against massive monstrous threats, Aokage demonstrates the ability to command at least one unique daikaiju, directing it against enemy forces.

Across the original series' four distinct narrative segments, Aokage engages in sustained operations against successive enemy organizations: the Kinme Kyo cult, the Manji Tou group hunting energy artifacts, the Negoro ninjas employing kaiju monsters, and the Mafuu ninjas targeting a potent golden mask. His involvement proves integral to the team's efforts throughout these conflicts, providing tactical support via explosives and technological solutions against both human foes and monstrous entities.

Subsequent media adaptations, including the 1987 anime, compilation films, and the 2001 live-action reboot, maintain this core depiction: Aokage remains the team's youthful explosives expert utilizing anachronistic technology within historical conflicts.