!! 1girl between_legs blush bow braid chair greyscale hair_bow hand_between_legs have_to_pee heart highres isonami_(kantai_collection) kantai_collection kneehighs knees_together_feet_apart koorimizu long_hair monochrome multiple_views peeing peeing_self pleated_skirt sailor_collar school_uniform serafuku shirt short_sleeves simple_background sitting skirt socks solo sweat text tied_hair toilet traditional_media translation_request trembling twin_braids uniform white_background