4girls, @_@, arms_behind_back, blush, bocchi_the_rock!, bound, bound_wrists, covering_another's_mouth, covering_mouth, from_side, gotoh_hitori, graphite_(medium), greyscale, hair_ornament, half-closed_eyes, hand_over_another's_mouth, hands_on_another's_face, hands_on_another's_knees, ijichi_nijika, imminent_rape, jacket, kita_ikuyo, kneeling, long_hair, long_sleeves, looking_at_another, melodyguru, monochrome, multiple_girls, neckerchief, pleated_skirt, sailor_collar, school_uniform, shimokitazawa_high_school_uniform, sitting, sketch, skirt, sweat, track_jacket, track_suit, traditional_media, undressing_another, yamada_ryo, yuri