2girls, all_fours, blue_sailor_collar, blue_shirt, blush, brown_eyes, closed_mouth, fingernails, long_sleeves, looking_at_viewer, matsunaga_kouyou, medium_hair, multiple_girls, neckerchief, original, panties, red_neckerchief, sailor_collar, school_uniform, serafuku, shirt, short_hair, smile, underwear, white_panties