012_sasaki, 1girl, belt, bikini, bikini_under_clothes, black_choker, black_hair, black_shorts, blue_eyes, choker, fate/grand_order, fate_(series), innertube, low_twintails, magatama, ocean, see-through, see-through_shirt, shorts, swimsuit, thigh_strap, twintails, utsumi_erice, utsumi_erice_(swimsuit_avenger), wading