"My Otome" is a 26-episode anime series set in the fictional world of Earl, where a unique social hierarchy revolves around the Otome, women who serve as protectors and guardians using advanced technology and combat skills. The story centers on Arika Yumemiya, a spirited and determined girl from the countryside who travels to the prestigious Garderobe Academy with the hope of becoming an Otome. Garderobe is an elite institution that trains young women to become Otome, who are bound to serve the rulers of various nations and wield immense power through their GEMs, special devices that grant them enhanced abilities.

Arika's journey begins with her arrival at Garderobe, where she faces numerous challenges due to her lack of formal training and mysterious background. She befriends Nina Wáng, a reserved and talented student, and Erstin Ho, a kind-hearted classmate. Together, they navigate the rigorous training and social dynamics of the academy. Arika's determination and unconventional methods often clash with the strict traditions of Garderobe, but her resilience earns her the attention of the academy's top students and instructors.

The narrative explores the political intrigue and power struggles within the world of Earl, as various factions vie for control. The Otome system itself becomes a focal point of conflict, with some questioning its purpose and ethics. Arika's quest to uncover her own origins intertwines with these larger events, revealing connections to the legendary Otome known as the "Meister Otome," who once protected the kingdom of Windbloom. As Arika delves deeper into her past, she discovers ties to a powerful figure named Mashiro Blan de Windbloom, the true heir to the Windbloom throne, who has been living in hiding.

The series features a diverse cast of characters, including Natsuki Kruger, the headmistress of Garderobe and a former Meister Otome; Shizuru Viola, a skilled and enigmatic instructor; and Sergay Wáng, a military officer with a complex relationship to Nina. Each character's motivations and backstories contribute to the unfolding drama, as alliances shift and secrets are revealed. The story builds toward a climactic confrontation involving the fate of Garderobe, the Otome system, and the nations of Earl.

"My Otome" blends elements of action, drama, and political intrigue, with a focus on themes of identity, duty, and the pursuit of one's destiny. The series balances personal character arcs with larger-scale conflicts, creating a narrative that is both intimate and expansive. Through its exploration of the Otome system and the individuals within it, the story examines the complexities of power, loyalty, and the choices that define one's path.