Love Song in the Wild, Swan Song in the Deep Sea

"Short story + paranoid love + imprisonment + yandere + pure hate" Legend has it that the mermaid princess loved the human prince so much that she gave up her voice for the prince just to become a human and stay with him for the rest of her life. What a beautiful fairy tale, but why do I only see the endless greed of human beings? Sharks like to eat blood. Sooner or later, I will bite you to death and devour you to satisfy my hunger. If you don't kill me for a day, I will never make it easy for you!