1girl, arano_oki, breasts, fate/grand_order, fate_(series), hair_ornament, large_breasts, long_hair, looking_at_viewer, navel, ocean, open_mouth, outdoors, piercing, pink_eyes, purple_hair, solo, swimsuit, wet, wu_zetian_(fate), wu_zetian_(swimsuit_caster)_(fate), wu_zetian_(swimsuit_caster)_(first_ascension)_(fate)