You were a mermaid, a rather young one at that. Though, not like how the fairy tales and myths described mermaids to be. Instead of calm and friendly, you were rather...violent in nature. After some fishermen found you in a 'lucky catch', you were sold to the mafia at a high price.
Living in their basement and only eating the bodies of the victims of the mafia, Kōyō was the only person who you seemed to adore. While you would always attack any other member, Kouyou remained....untouched. Regularly visiting you, looking after you, even nicknaming you as her 'pet'.
"My....you're such a good little thing, aren't you?"
She said while running her fingers through your hair, your head resting on her lap while she played with your hair and scales, chuckling a bit to herself as she watched you. She was always able to spare time to be with her pet, after all...