1boy, 2girls, @ @, ahoge, black hair, black jacket, black skirt, bottle, bound, box, brother and sister, brown eyes, brown hair, cardboard box, comic, funnel, gag, gagged, grey hair, hair between eyes, hair ornament, hairclip, improvised gag, jacket, low twintails, male-female symbol, multiple girls, school uniform, shaded face, siblings, sketch, skirt, tape, tape gag, tears, tied up nonsexual, twintails, wavy mouth, yellow eyes