1girl, blue_eyes, blue_one-piece_swimsuit, bomberca309, casual_one-piece_swimsuit, choker, fate/grand_order, fate_(series), from_behind, hair_ribbon, long_hair, meltryllis_(fate), meltryllis_(swimsuit_lancer)_(fate), meltryllis_(swimsuit_lancer)_(second_ascension)_(fate), ocean, one-piece_swimsuit, purple_choker, purple_hair, ribbon, sleeves_past_fingers, sleeves_past_wrists, solo, swimsuit, very_long_hair, water, white_background