1girl, between_legs, black_socks, blue_eyes, blue_hair, blue_skirt, blush, breasts, chair, chorian_(pixiv_83912440), classroom, clenched_teeth, collared_shirt, desk, embarrassed, glasses, hand_between_legs, have_to_pee, heart, heavy_breathing, indoors, kneehighs, knees_together_feet_apart, medium_breasts, miniskirt, moaning, nose_blush, on_chair, original, pleated_skirt, round_eyewear, school_chair, school_desk, shirt, short_hair, short_sleeves, sidelocks, sitting, skirt, socks, solo, spoken_heart, sweat, sweater_vest, tears, teeth, thighs, trembling, v-shaped_eyebrows, vest, white_shirt, x-ray, yellow_vest