6+girls, alternate_form, black_hair, blonde_hair, blue_hair, breasts, brown_hair, dark-skinned_female, dark_skin, diving_mask, glasses, goggles, green_eyes, large_breasts, mermaid, military, military_vehicle, monster_girl, monsterification, multiple_girls, pink_hair, ponytail, red_eyes, sideboob, submarine, swimsuit, torpedo, twintails, watercraft