"Gundress" is a science fiction anime set in a futuristic Tokyo, where the city has been transformed into a sprawling metropolis divided into sectors. The story centers on a group of elite female operatives known as the Gundress team, who are tasked with maintaining order and combating crime in this high-tech urban environment. The team operates under the authority of the Tokyo Metropolitan Police, utilizing advanced mecha suits called Gundress units, which grant them enhanced strength, agility, and firepower.

The narrative begins with the introduction of the protagonist, Yuri Sakazaki, a skilled and determined officer who joins the Gundress team after a personal tragedy involving her family. Yuri's motivations are deeply tied to her desire for justice and her commitment to protecting the city. Alongside her are other key team members, including the tactical leader Reiko Tamura, the tech-savvy Aya Misaki, and the combat specialist Kaori Fujimiya. Each member brings unique skills and perspectives to the team, contributing to their effectiveness in handling various threats.

The plot unfolds as the Gundress team faces a series of escalating challenges, ranging from organized crime syndicates to rogue AI systems and corporate espionage. A central antagonist emerges in the form of a shadowy organization known as Black Moon, which seeks to destabilize Tokyo for its own gain. The conflict between the Gundress team and Black Moon drives much of the narrative, with the team uncovering deeper conspiracies that threaten the city's stability.

As the story progresses, the characters grapple with personal and professional dilemmas, including the ethical implications of their advanced technology and the toll their missions take on their lives. The anime explores themes of loyalty, sacrifice, and the balance between justice and power. The Gundress team's efforts culminate in a climactic confrontation with Black Moon, revealing the true extent of the organization's plans and forcing the team to make difficult choices to protect Tokyo and its citizens. The series concludes with a resolution that ties together the personal arcs of the main characters while leaving room for future developments in the world of "Gundress."