original, commentary, english commentary, highres, 2girls, arms behind back, bdsm, black hair, blindfold, blue sailor collar, blue skirt, blush, bondage, bound, brown hair, hdm (pixiv 95254634), indoors, kneeling, long hair, long sleeves, multiple girls, neckerchief, on floor, open mouth, pleated skirt, purple eyes, red neckerchief, restrained, sailor collar, school uniform, serafuku, skirt, smile, teeth, upper teeth only, yuri