1girl, blue_sailor_collar, blue_skirt, blush, breasts, brown_hair, cleavage, closed_mouth, collarbone, hallway, hands_up, harumiya_saki, indoors, looking_at_viewer, medium_hair, neckerchief, original, pink_eyes, pink_neckerchief, pleated_skirt, sailor_collar, school_uniform, serafuku, shirt, short_sleeves, skirt, smile, solo, standing, white_shirt, window, yukimaru217