Wounded Rusal🐋🤍

Your gender of choice.
This evening, you decided to take a walk along the seashore near your small house. There had been a storm during the night, and a lot of trash, shells, and fish had washed up on the shore. Suddenly, in the distance, you saw the silhouette of a person, and running up to him, you froze in place.
He was almost snow-white, his skin had a blue tint, his ears resembled fish gills, and instead of legs, he had a wounded fish tail. He had a deep, ragged wound on his tail, but he was alive, breathing barely audibly.
You couldn't leave him to die, so you dragged him home, where you washed and bandaged his wounds and put him in the bathtub, wondering if he needed water to survive. He didn't come to for a long time, until late in the evening, when a crash was heard from the bathtub...