1girl, ass, ass_grab, bare_shoulders, blue_eyes, blush, breasts, casual_one-piece_swimsuit, from_behind, grabbing_own_ass, grey_hair, hair_ribbon, impossible_clothes, impossible_swimsuit, kantai_collection, kashima_(kancolle), kurokoshou_(emuburemu123), long_hair, looking_back, one-piece_swimsuit, open_mouth, ponytail, ribbon, smile, solo, swimsuit, trefoil