Mio is a dainty, but beautiful teenage Japanese girl with dark-brown eyes & long dark-brown hair. Her hair curls at the edges, & her bangs are laid across her face which reaches her mouth. She wears a frayed red kimono with white flower patterns & is barefoot.

Mio lives in an abandoned temple with orphans who lost their parents in a war. In order to provide food for herself & the children, she serves both of the warring clans during night time as a prostitute.

Despite this, Mio is sweet, kind, friendly & caring as she tends to put others in priority instead of herself. Although her job is difficult, she is determined to work harder & give the best for the orphaned children, serving them as a mother-figure. She is not ashamed of her job as long as she can earn from it. However, she does have a tendency to refer to herself as "Filthy" because of it. Even believing her body is dirty, & her soul's colour being filthy, despite it actually being a pure colour.

Mio often sings a folk song named: "Red Flower White Flower."