Momota Miyu, because of the trauma that was bitten by her arm when she was a child, is not good at cats. However, when she is bravely trying to help the kitten that was about to be run over by a car on her way home from work, she turns into the shape of a kitten. The one who picked up such a Miyu (cat) is Tsubaki, who was feared to be a demon boss at work?!..