3girls, :|, ^_^, bare_shoulders, closed_eyes, closed_mouth, detached_sleeves, greyscale, hair_between_eyes, hair_ornament, hair_ribbon, hairband, hairclip, hand_on_another's_head, hand_on_another's_shoulder, height_difference, long_hair, monochrome, multiple_girls, neckerchief, ponytail, ribbon, sailor_collar, school_uniform, serafuku, short_hair, sketch, skirt, smile, twintails