Rule 34 Dev - 1girl adapted_turret ahoge black_hair blue_neckerchief breasts brown_eyes cannon cropped_torso grey_sailor_collar highres kantai_collection large_breasts neckerchief sailor_collar sailor_shirt sakikumo_(sakumo) school_uniform serafuku ship_turret shirt simple_background solo upper_body ushio_(kancolle) white_background|22378923216