1girl, ahoge, bikini, blush, breasts, cleavage, collarbone, fate/grand_order, fate_(series), fujimaru_ritsuka_(female), fujimaru_ritsuka_(female)_(brilliant_summer), groin, hawaiian_shirt, huge_breasts, koohii_koucha_maru, navel, open_clothes, open_shirt, orange_bikini, orange_eyes, orange_hair, outdoors, shirt, side-tie_bikini_bottom, side_ponytail, solo, striped, striped_bikini, sunglasses, swimsuit, unworn_eyewear