1girl, bad_pixiv_id, blue_eyes, blue_sailor_collar, blue_skirt, cabinet, closed_mouth, cowboy_shot, from_behind, from_side, hand_up, holding, holding_letter, indoors, letter, long_sleeves, looking_to_the_side, midriff_peek, original, pleated_skirt, rin_(rin_illust_0805), sailor_collar, school_uniform, serafuku, shirt, short_hair, skirt, solo, standing, thighhighs, uniform, white_hair, white_shirt, white_thighhighs, zettai_ryouiki