1girl, arms_behind_back, black_hair, blue_skirt, blush, breasts, chitanda_eru, closed_mouth, from_below, huge_breasts, hyouka, looking_at_viewer, nikichen, patreon_logo, patreon_username, pleated_skirt, purple_eyes, school_uniform, short_sleeves, skirt, smile, solo, thighhighs, underboob, watermark, web_address