nanamira bi, kaga sumire, vspo!, commentary request, highres, 1girl, arm behind back, armband, black-framed eyewear, black ribbon, blue background, blue eyes, book, border, brown jacket, cropped legs, finger to face, grey hair, grey skirt, hair ribbon, heart, holding, holding book, jacket, kaga sumire (9th costume), long hair, long sleeves, looking at viewer, neck ribbon, open mouth, plaid clothes, plaid skirt, pleated skirt, red ribbon, ribbon, school uniform, semi-rimless eyewear, skirt, solo, two side up, virtual youtuber, white border