Familiar
As a baby, Rido rarely sees her parents. The only one ever there is her father's familiar- a cat with midnight blue fur and icy blue eyes. He has a tendency to stare at her. Without blinking.
Now Rido knows it's her father's way of watching over her and being there to attend to her needs, but damn if it isn't creepy. On the other hand, he's efficient. He's somehow able to change her diaper without her noticing and whenever she's hungry, he'll press his forehead against her lips to pass energy.
All in all, he's not a bad companion. At least, he cuddles.