1girl adapted_costume ahoge alternate_costume back back_focus bare_shoulders bikini black_bikini black_hair braid butt_crack commentary_request facing_away fingernails from_above from_behind hair_flaps hair_ornament hair_ribbon kantai_collection long_hair nape outdoors ribbon sand shigure_(kancolle) shigure_kai_ni_(kancolle) single_braid solo swimsuit tress_ribbon umakuchi_shouyu