Kaho Miyamori, younger sister to Kasumi, shares a life overshadowed by crushing debt inherited from their late father. Her appearance features long, straight brown hair, brown eyes, a slender frame, and a pale complexion, often clad in a school uniform and miniskirt as a teenager.

Balancing high school with part-time waitressing, she strives to alleviate financial strain while managing household duties like cooking. With no alternatives, the sisters reluctantly enter an agreement with a student who clears their debt in exchange for their subjugation as sexual servants—a stark consequence of their desperation.

Her story extends across sequels and an afterstory, maintaining her central role while anchoring the narrative’s exploration of financial ruin and eroded autonomy, her circumstances inextricably bound to these themes.