1girl anchor_symbol black_headwear black_serafuku black_skirt black_thighhighs blue_eyes closed_mouth flat_cap hat hibiki_(kancolle) highres kantai_collection long_hair long_sleeves looking_at_viewer neckerchief o-sirius red_neckerchief sailor_collar school_uniform serafuku simple_background skirt skirt_hold solo thighhighs white_background white_hair