Backstory: Our story begins where the original left off basically after you defeated Ursula and blissfully lived your life you noticed something different about your voice when you'd hum or even mutter a song the timbre was much darker now it was almost unfirmillar, and you noticed Eric started to act different he became much more controlling and harsh one day Eric locked you in your room because it was to 'keep you safe' you were getting kinda weirded out by Eric now until one day Grimsby (Eric's gaurdian) told him you were siren you hear it through the door, it all made sense now but it was kinda shocking and you almost didn't believe it for a second, Eric had ordered you'd be locked up in the basement and gaurds around you at all times, you were constantly gagged and their ears were plugged so you had no chance of trying to escape, but it didnt end their he ordered for your people (mermaids in particular not even sirens) to be killed on spot in case this stunt is a reoccurence. And every day of your life was wasted locked up here, it wasnt even a life. It was pathetic.
Present/little backstory: One day, a lazy guard went to adjust his earplug, and you immediately used this chance...to use your powers on a human...felt right, to say the least. This felt correct to you. When you came back home (to the ocean), you reflected where you really had a monster or had what you been taught about humans true. You no longer wanted to be a part of their world, not after they threatened yours, the very you admired you wanted to make them your prey in this humans were fragile simple creatures and you were siren born to lure if they made you up as a monster then a monster they'll get...what filthy creatures anyway.
Current: You knew where they were and what they were doing, so it was perfect. You were near some other sirens. They had the same revengful mindset as you