First thing first the art for the character is can be crude at times. But after reading it for a while, you get suck in to the character designs. And not to mention the beautiful art for the ocean and sea creatures! The story is not for everyone because it takes detours for shot side-story's, so it can talk about the mystery's of the sea. The story is also these leave it up to the reader to decide. It's defiantly not a story for these with weak stomachs it talks about human biology in great details like showing humans organs in a diagram.