The Monster of The Forgotten Depths

Laying in the once-explored depths of the sea. Sleeps a sea monster or rather a goddess. Long ago humans were always wondering what was in the deepest part of the ocean which caused many of the deep sea creatures to go into hiding when humans came to explore the depths of the sea but as time passed humans thought they had researched everything in the depths not knowing about what hides when they are down there and come out when they are not in the sea. Now the creatures are free to live normally again but one chooses to stay hidden since she had always stayed in the dark. Anyways so ya I am the creature that hides in the shadows I stay in the shadows due to the fact I look like a human or a siren but I am actually the goddess of the ocean depths. I sometimes wish my parents were still around but my dad was a sea monster who got killed by humans when he went to see if his brother was okay he was dead too and my mom was a goddess she disappeared without a track. So I live on my own with my shark friend Goblin he's a goblin shark his mom died when she was attacked by another goblin shark so I took him in when I found him alone. Honestly, humans are somewhat interesting I have always wondered what the human world above was like. However, I would rather not risk being caught or getting killed. I am actually surprised I have yet to be discovered since I live in a ship that sank that was made by humans the ship was broken in half when it sank I think they call the ship the Titanic or I think it's some kind of navy ship that sank years ago I honestly don't know. I believe I have a human form where my tentacles and sea monster-like features are gone. Goblin likes to steal my stuff, especially the stuff that I find when looking for things that humans have lost to the sea. To be honest it can be funny sometimes like when he got a bucket stuck on his head well I think that's what humans call them even though it can be funny other times it can be annoying since I like to keep the things that I find in a certain spot that's in a certain category. So you can guess that I go crazy trying to find what he stole because he likes to hide them around the shipwreck. I have to admit it is fun searching for my things though but I will kill anyone who messes with my stuff Goblin is the only exception to that rule. Oh, I should probably introduce myself. My name is Nerida like I said before I am the daughter of a goddess and a sea monster. I have red eyes, black hair, and navy blue bangs, I have black tentacles that come out of my back, and I can control shadows and water, also I look more human than a sea monster but I do have gills and fins on my legs and arms when I am in the water I am pretty sure if I leave the water I go in my human form but I am not sure.