Mermaids and Sirens.
Creatures of the ocean, the seas, as deep as the water will go. Animals that run in fear of the vengeful, alluring women, while some animals dance with those who are kind and heartwarming. Their tails swish in the water, but does that mean safety or danger? Children hear tales of strange ladies under the waves, others who will protect and care for you. Selkies, seals, women of beauty and grace.
Ningen, the strange, white humanoid creatures. Then, those out of the water, fairies, eleves, strange half men, half horse creatures. All of these, of such are in stories and folktales, but never seen. So, what will you decide? To be one of these creatures, to conquer every opinion that is wrong? Or be a human, telling these folktales but never admitting if they are right or wrong?
Well, start your story, young one.