Soshite Fune wa Yuku

In the vast ocean, two female pirates, Mary Lead and Ann Pony, might seem like helpless prey to other pirates. But this pair is known as the pirate crushers because these two beauties can take out and destroy fully manned pirate ships. Mary, the excellent swordswoman, and Ann, the amazing markswoman, are traveling the ocean in search of one man: a man with a certain tattoo on the palm of his hand.