1girl, ahoge, ass, back, ball, bare_shoulders, beach_umbrella, beachball, bikini, black_bikini, blue_sky, breasts, fate/grand_order, fate_(series), fujimaru_ritsuka_(female), halterneck, highres, looking_at_viewer, looking_back, medium_breasts, one_side_up, open_mouth, orange_eyes, orange_hair, shibata_rai, short_hair, sky, solo, string_bikini, swimsuit, thighs, umbrella