1boy, 1girl, :d, black_hair, blue_eyes, breasts, clam, clam_shell, cleavage, detached_sleeves, diving, diving_mask, diving_suit, fish, goggles, head_fins, jewelry, long_hair, looking_at_viewer, mermaid, monster_girl, necklace, ocean, open_mouth, oxygen_tank, shell, shell_bikini, smile, submerged, tail