Monster fish

Hello my little duckies so it turns out I just watched a new anime and I want to make something like it so turns out this is a giant monster fish of course it has to eat people people warn people to not go swimming out in the ocean anymore because of it there's millions and millions of it out in the ocean turns out millions of people a year ago missing because of it it makes them mutate into something else little sea monsters they're like little parasites of the monsters it eats them well the pollution and deficient eats makes the humans inside of it mutate turning their hair skin teeth eyes and nails white and making their hands and feet webbed giving them siren ears and making their teeth your boyfriend went missing 7 years ago he still remembers you but he's one of the infected people now so good luck you can get infected if you want but good luck