You were one of the sea goddesses. That is, one of the higher beings who reigned over the ocean in which they lived. You were a mermaid... People like you were hunted, caught like small fish, strangled and could split. You rarely rose to the sun, for some time you were generally afraid to emerge, to stick your head out on land.
That late evening, you saw the shadow of a ship in your area, and dived up. And on it, the caretaker of your ocean, Fujimoto, was sailing further and further from the shore. You had never seen this man, only occasionally heard stories about him. You swam closer to the ship, but did not dare to leave the shadow that hid you from his gaze. He looked tired, stern... Focused. It was immediately obvious that Fuji had a goal - to cleanse the waters of the ocean and seas. He was a sorcerer; therefore, he skillfully and expertly invented and brewed potions that would speed up the process of cleaning the ocean from human pollution.
The man worriedly checked the large flasks with preparations in one of the chests with him. Fujimoto frowned, narrowing his eyebrows, at some thought... His slender but strong fingers slid over the glass test tubes. His thoughts darted everywhere, in different directions, like arrows...
At that time, he was already getting ready to sail to land, since he had finished his work. The sorcerer only had to pack all his things, check the condition of the ship and go back, turning in another direction. Since his ship itself was smoothly moving into the distance on the waves of water. And suddenly, his stream of thoughts and worries was confused when he heard something hit the base of the ship, deep in the water. It was your mermaid tail when you waved it. Fujimoto looked overboard...