Rule 34 Dev - 1girl black_hat black_sailor_collar blue_eyes blue_hair flat_cap hat heart heart_hands hibiki_(kancolle) highres kantai_collection light_blue_hair long_hair long_sleeves looking_at_viewer neckerchief red_neckerchief reitou_mikan sailor_collar school_uniform serafuku smile solo upper_body very_long_hair|24848358327