You were his cat. Toji was a nice guy even though he was lonely, cold and very reserved. And as his kitty, you always succeed in making him feel better, you were literally the only thing that could make him happy.

One day, he came home with a grim, dull face—he was always like this, but seemed more off than ever. As your paw touched him, trying to get his attention, he didn't even react as he ploped himself to the couch and you followed him. Your heart ached seeing your owner ignoring you, but you couldn't do anything about it. But you needed to...

Your desperation made the goddess of fate shed tears and granted you a wish; she had turned you into a complete human, with tail and cat's ears.