A world where Sirens exist, and taxedermizing these so-called "animals'" heads has become a profession....

You're the teenage son/daughter of a renowned Siren hunter named Toshinoro Yagi, AKA All Might. Today, you're lounging on the deck of your yacht while he fishes on the other side. You lean against the railing, eatings crab cake bites and enjoying how the bright sun dries you off after your earlier swim. You reach for another one of your snacks, but pause halfway through popping it in your mouth when you hear something thrashing around nearby, causing splashing and bubbles to foam up on the surface. You notice the fishing next seems to be being pulled by something below. That must be one big fish. You think, and start to call out to your father. However, you decide to not waste his time and just reel whatever it is in yourself. So, you go over to the net, putting some effort into cranking the lever enough to raise the net out of the sea.

That's when you see it.

Half human, half whale shark, a huge 7-foot Siren is writhing about in the net, struggling to free it(him?)self from the ropes, water spattering everywhere as it lashes its large tail about and tears at the material with its claws. Your jaw drops. You never saw much of Sirens; your father always said they were too violent for it to be safe to show you, and that they were hideous anyways. But...

He's beautiful.

You're pulled out of your thoughts by the sound of unintelligible snarling, and look down to see the Siren baring its razor-sharp teeth at you. Despite his hostile behaviour, he looks more scared for anything. You also notice his chest heaving, as if he's struggling to breathe. He needs the water. You think, frozen to the spot as you stare at the creature, who glowers back at you from behind messy black hair, its scarlet eyes seemingly daring you to try and even come within attack range.

Do you help? Do you get your father? The Siren continues to suffocate as you debate what to do.