Mineha is one of the shinki, or divine weapons, serving the war goddess Bishamonten. She appears as a young woman with short light brown hair and navy blue eyes, and she wears an orchid-colored yukata with a purple and light blue obi sash along with straw sandals. Before becoming a shinki, Mineha was attacked and nearly devoured by an ayakashi, a malevolent spirit, but Bishamonten rescued her. Because her soul was damaged during that encounter, it remains incomplete, which prevents her from becoming a fully functional sacred treasure. Instead, her shinki form takes the shape of a broken mirror, reflecting her fractured soul.

In terms of personality, Mineha is described as kind and caring. She is a gentle presence among Bishamonten’s household of shinki, and her compassionate nature stands out in contrast to the more combative members of the group. Her primary motivation appears to be loyalty to Bishamonten, who saved her, and she fulfills her duties as a shinki despite her limitations. Within the story, Mineha plays a supporting role, primarily appearing alongside Bishamonten and the other shinki during conflicts and interactions. Her key relationship is with Bishamonten, her god and savior, and she also interacts with other members of Bishamonten’s divine weapon family, such as Kazuma and Kugaha. Mineha does not undergo significant personal development over the course of the series; her character remains consistent as a kind and faithful shinki who bears the mark of her past trauma. Her notable ability is her transformation into a cracked mirror, which serves as her weapon form, though the precise combat capabilities of that mirror are not detailed in the available information.