black_serafuku black_shirt bouncing_breasts breasts brown_hair closed_eyes collared_shirt hair_flaps hairband kantai_collection neckerchief open_mouth red_hairband red_neckerchief sailor_collar school_uniform serafuku shiratsuyu_(kancolle) shiratsuyu_kai_ni_(kancolle) shirt short_sleeves smile upper_body whistle whistle_around_neck white_sailor_collar yellow_background yuki_(yukineko-nyaa)